名词中文翻译
中文翻译：针阀
同义词：
['pinhole valve', 'needle valve']
例句：
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1. The pin valve in the pump is causing a problem.
泵上的针阀出了问题。
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2. The engineers are working on fixing the pin valve.
工程师们正在修理针阀。
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3. The technician needs to replace the pin valve in the engine.
技术员需要更换发动机里的针阀。