名词
中文翻译：污染阀
同义词：
['polluting valve', 'contamination valve']
例句：
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1. The pollution valve needs to be replaced immediately.
污染阀门需要立即更换。
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2. The contamination valve is responsible for filtering out pollutants.
污染阀门负责过滤掉污染物。
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3. The contamination valve is a crucial component of the wastewater treatment system.
污染阀门是废水处理系统的关键部件。