update doc against 5814

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/application-dev/reference/apis/js-apis-mediaquery.md

@@ -23,15 +23,17 @@ matchMediaSync(condition: string): MediaQueryListener
 
 Sets the media query criteria and returns the corresponding listening handle.
 
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
+
 **Parameters**
 | Name      | Type    | Mandatory  | Description                                      |
-| --------- | ------ | ---- | ---------- |
-| condition | string | Yes   | Matching condition of a media event.|
+| --------- | ------ | ---- | ---------------------------------------- |
+| condition | string | Yes   | Matching condition of a media event. For details, see [Syntax of Media Query Conditions](../../ui/ui-ts-layout-mediaquery.md#syntax-of-media-query-conditions).|
 
 **Return value**
 | Type                | Description                    |
 | ------------------ | ---------------------- |
-| MediaQueryListener | Listening handle to a media event, which is used to register or unregister the listening callback.|
+| MediaQueryListener | Listening handle to a media event, which is used to register or deregister the listening callback.|
 
 **Example**
   ```js
@@ -43,6 +45,7 @@ listener = mediaquery.matchMediaSync('(orientation: landscape)'); // Listen for
 
 Media query handle, including the first query result when the handle is applied for.
 
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
 
 ### Attributes
 
@@ -58,6 +61,8 @@ on(type: 'change', callback: Callback<MediaQueryResult>): void
 
 Registers a callback with the corresponding query condition by using the handle. This callback is triggered when the media attributes change.
 
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
+
 **Parameters**
 | Name     | Type                              | Mandatory  | Description              |
 | -------- | -------------------------------- | ---- | ---------------- |
@@ -72,12 +77,15 @@ Registers a callback with the corresponding query condition by using the handle.
 
 off(type: 'change', callback?: Callback<MediaQueryResult>): void
 
-Unregisters a callback with the corresponding query condition by using the handle, so that no callback is triggered when the media attributes change.
+Deregisters a callback with the corresponding query condition by using the handle, so that no callback is triggered when the media attributes change.
+
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
+
 **Parameters**
 | Name     | Type                              | Mandatory  | Description                           |
 | -------- | -------------------------------- | ---- | ----------------------------- |
 | type     | boolean                          | Yes   | Must enter the string **change**.             |
-| callback | Callback<MediaQueryResult> | No   | Callback to be unregistered. If the default value is used, all callbacks of the handle are unregistered.|
+| callback | Callback<MediaQueryResult> | No   | Callback to be deregistered. If the default value is used, all callbacks of the handle are deregistered.|
 
 **Example**
   ```js
@@ -92,7 +100,7 @@ Unregisters a callback with the corresponding query condition by using the handl
         }
     }
     listener.on('change', onPortrait) // Register a callback.
-    listener.off('change', onPortrait) // Unregister a callback.
+    listener.off('change', onPortrait) // Deregister a callback.
   ```