名词
中文翻译：阀门
同义词：
['valve mechanism', 'valve actuator']
例句：
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1. The valve is responsible for controllingthe flow of gases through the pipeline.
阀门负责控制气体通过管道的流动。
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2.The valve was designed to prevent leaksand ensure safe operation.
阀门被设计来防止泄漏并确保安全操作。
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3. The valveoperator must be trained in proper maintenance procedures.
阀门操作员必须接受适当的维护程序培训。