[GitHub] [flink] wuchong commented on a change in pull request #8995: [FLINK-13106][doc-zh]Translate Parallel Execution page into Chinese

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wuchong commented on a change in pull request #8995: [FLINK-13106][doc-zh]Translate Parallel Execution page into Chinese
URL: https://github.com/apache/flink/pull/8995#discussion_r301435854
 
 

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 File path: docs/dev/parallel.zh.md
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 @@ -80,17 +71,11 @@ env.execute("Word Count Example")
 </div>
 </div>
 
-### Execution Environment Level
+### 执行环境层次
 
-As mentioned [here]({{ site.baseurl }}/dev/api_concepts.html#anatomy-of-a-flink-program) Flink
-programs are executed in the context of an execution environment. An
-execution environment defines a default parallelism for all operators, data sources, and data sinks
-it executes. Execution environment parallelism can be overwritten by explicitly configuring the
-parallelism of an operator.
+如[此节]({{ site.baseurl }}/zh/dev/api_concepts.html#anatomy-of-a-flink-program)所描述，Flink 程序运行在执行环境的上下文中。执行环境为所有执行的算子、数据源、数据汇定义了一个默认的 parallelism。可以显式配置算子层次的 parallelism 去覆盖执行环境的 parallelism。
 
-The default parallelism of an execution environment can be specified by calling the
-`setParallelism()` method. To execute all operators, data sources, and data sinks with a parallelism
-of `3`, set the default parallelism of the execution environment as follows:
+执行环境的默认 parallelism 可以通过调用 `setParallelism()` 方法指定。可以通过如下的方式设置执行环境的 parallelism，以并发度 `3`来执行所有的算子、数据源和数据汇：
 
 Review comment:
   sink 不做翻译，或翻译为 “数据接收器”

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