名词
中文翻译：内部阀门同义词
同义词：
['internal shut-off', 'internal relief valve']
例句：
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1. The internal valve is responsible for controllingthe flow of oil through the engine.
内部阀门负责控制机油通过发动机的流动。
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2.The engineers had to replace the internalvalve due to its failure.
工程师们不得不更换内部阀门，因为它已经失效了。
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3.The internal valve was designed to prevent airfrom entering the engine during operation.
内部阀门设计用来在运行过程中防止空气进入发动机。