名词
中文翻译：排水阀
同义词：
['water shut-off valve', 'water control valve例句：1. The engineer installed a new water drain valve to improve the efficiency of the system.（工程师安装了一个新的排水阀，以提高系统的效率。）']
例句：
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1. The engineer installed a new water drain valve to improve the efficiency of the system.
工程师安装了一个新的排水阀，以提高系统的效率。
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2. The plumber replaced the old water drain valve with a modern one.
水管工用一个现代的排水阀替换了旧的。
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3.The technician checked the water drain valve and found it to be functioning properly.
技术员检查了排水阀，发现它工作正常。