diff --git a/src/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 171fe8d8a..18eac199a 100644
--- a/src/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -149,7 +149,7 @@ TimechoDB extends Apache IoTDB with advanced industrial-grade capabilities, incl
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -205,55 +205,55 @@ TimechoDB extends Apache IoTDB with advanced industrial-grade capabilities, incl
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index ce4539446..ad2ffb48f 100644
--- a/src/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -101,7 +101,7 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -157,55 +157,55 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index c6ddd3475..7dacb2a78 100644
--- a/src/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -101,7 +101,7 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -157,55 +157,55 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index c6ddd3475..7dacb2a78 100644
--- a/src/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -101,7 +101,7 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -157,55 +157,55 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 171fe8d8a..18eac199a 100644
--- a/src/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -149,7 +149,7 @@ TimechoDB extends Apache IoTDB with advanced industrial-grade capabilities, incl
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -205,55 +205,55 @@ TimechoDB extends Apache IoTDB with advanced industrial-grade capabilities, incl
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index ce4539446..ad2ffb48f 100644
--- a/src/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -101,7 +101,7 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Dual Active Deployment</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -157,55 +157,55 @@ The detailed functional comparison is as follows：
       </tr>
       <tr>
             <td>Tiered Storage</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>View</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>White List</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Audit Log</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">Supporting Tools</td>  
             <td>Workbench</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Cluster Management Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>System Monitor Tool</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>Localization</td>  
             <td>Localization Compatibility Certification</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">Technical Support</td>  
             <td>Best Practices</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>Use Training</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
 </tbody>
diff --git a/src/zh/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 754a43a73..3f7e2edf8 100644
--- a/src/zh/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/Master/Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -104,7 +104,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -160,55 +160,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>
diff --git a/src/zh/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 754a43a73..3f7e2edf8 100644
--- a/src/zh/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/Master/Tree/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -104,7 +104,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -160,55 +160,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>
diff --git a/src/zh/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 04d7766b9..4291102cc 100644
--- a/src/zh/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/V1.3.x/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -99,7 +99,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -155,55 +155,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>
diff --git a/src/zh/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 27768573e..009e1f2fc 100644
--- a/src/zh/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/dev-1.3/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -99,7 +99,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -155,55 +155,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>
diff --git a/src/zh/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 754a43a73..3f7e2edf8 100644
--- a/src/zh/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/latest-Table/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -104,7 +104,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -160,55 +160,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>
diff --git a/src/zh/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md b/src/zh/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
index 754a43a73..3f7e2edf8 100644
--- a/src/zh/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
+++ b/src/zh/UserGuide/latest/IoTDB-Introduction/IoTDB-Introduction_timecho.md
@@ -104,7 +104,7 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>双活部署</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td> 
       </tr>
        <tr>
@@ -160,55 +160,55 @@ TimechoDB 在 Apache IoTDB 基础上提供了更多高阶产品功能，在内
       </tr>
       <tr>
             <td>多级存储</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>视图</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>白名单</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>审计日志</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td rowspan="3">配套工具</td>  
             <td>可视化控制台</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>集群管理工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>系统监控工具</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
       <tr>
             <td>国产化</td>  
             <td>国产化兼容性认证</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td rowspan="2">技术支持</td>  
             <td>最佳实践</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>       
       </tr>
       <tr>
             <td>使用培训</td> 
-            <td>/</td> 
+            <td>-</td> 
             <td>√</td>
       </tr>
   </tbody>