名词
中文翻译：子弹阀
同义词：
['bullet-headed valve', 'bullet-shaped valve']
例句：
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1. Theengineer designed a bullet valve to improve the efficiency of the pump.
工程师设计了一个子弹阀来提高泵的效率。
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2. The bullet valve is used in the construction of buildings to prevent water leakage.
子弹阀用于建筑施工中，以防止漏水。
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3. The bullet valve was installed at the entrance of the factory to control the flow of air.
在工厂入口处安装了子弹阀，以控制空气流动。