名词
中文翻译：阀门
同义词：
['valve stem', 'valve stem', 'valve stem']
例句：
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1. The valve is the only thing that can control the flow of gases.
阀门是控制气体流动的唯一东西。
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2. The valve is responsible for regulating the pressure in the pipeline.
阀门负责调节管道中的压力。
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3. The valve is used to prevent air from entering the engine.
阀门用来防止空气进入发动机。