Update 2.balance-syntax.md

docs-2.0/synchronization-and-migration/2.balance-syntax.md

@@ -8,26 +8,15 @@ We can submit tasks to load balance Storage services in NebulaGraph. For more in
 
 The syntax for load balance is described as follows.
 
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 |Syntax|Description|
 |:---|:---|
-|`BALANCE LEADER`| Starts a job to balance the distribution of all the storage leaders in all graph spaces. It returns the job ID. |
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-|Syntax|Description|
-|:---|:---|
-|`BALANCE LEADER`| Starts a job to balance the distribution of all the storage leaders in all graph spaces. It returns the job ID. |
-|`BALANCE DATA`| Starts a job to balance the distribution of storage partitions in the current graph space. It returns the job ID. |
-|`BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`| Migrate the partitions in the specified storage host to other storage hosts in the current graph space. |
+|`SUBMIT JOB BALANCE LEADER`| Starts a job to balance the distribution of all the storage leaders in all graph spaces. It returns the job ID. |
+|`SUBMIT JOB BALANCE DATA`| Starts a job to balance the distribution of storage partitions in the current graph space. It returns the job ID. |
+|`SUBMIT JOB BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`| Migrate the partitions in the specified storage host to other storage hosts in the current graph space. |
 
 !!! note
 
-    `REMOVE` can only clear the partitions of the current graph space. If a Storage service has a large number of graph spaces, you need to switch to all different graph spaces to perform the `REMOVE` operation.
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+    - `SUBMIT JOB BALANCE DATA REMOVE` can only clear the partitions of the current graph space. If a Storage service has a large number of graph spaces, you need to switch to all different graph spaces to perform the `REMOVE` operation.
+    - Only NebulaGraph Enterprise Edition supports the commands `SUBMIT JOB BALANCE DATA` and `SUBMIT JOB BALANCE DATA REMOVE`.
 
 For details about how to view, stop, and restart a job, see [Job manager and the JOB statements](../3.ngql-guide/4.job-statements.md).