名词
中文翻译：阀门
同义词：
['valve', 'valve stem', 'valve stem stem']
例句：
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1. The valve on the pipe is wornout and needs to be replaced.
管道上的阀门磨损严重，需要更换。
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2. The engineercarefully inspected the valve before installing it.
工程师在安装前仔细检查了阀门。
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3.The valve controls the flow of oil inthe engine.
阀门控制着发动机中油的流动。