名词
中文翻译：下水道阀门
同义词：
['sewage valve', 'sewer shutoff valve']
例句：
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1.The sewer valve needs to be replaced immediately after the inspection.
检查后，下水道阀门需要立即更换。
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2.The sewer valve is responsible for controlling the flow of wastewater in the sewer system.
下水道阀门负责控制污水系统中废水的流动。
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3. The sewer valve must be properly installed and maintained to ensure the safety of the sewer system.
下水道阀门必须正确安装和维护，以确保污水系统的安全。