名词
中文翻译：减压阀
同义词：
['pressure relief valve', 'reliefvalve device']
例句：
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1. Therelief valve prevents the pressure from buildingup too high.
减压阀防止压力过高。
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2.The relief valve was designed to release excesspressure quickly.
减压阀被设计用来迅速释放过量的压力。
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3. The engineers had toreplace the old relief valve with a newone.
工程师们不得不用一个新的减压阀来替换旧的。