名词
中文翻译：阀门环
同义词：
['valve seat', 'valve keeper', 'valve cover例句：1. The valve ring was worn smooth from years of use.（阀门环因多年使用而磨损光滑。）']
例句：
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1. The valve ring was worn smooth from years of use.
阀门环因多年使用而磨损光滑。
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2. The engineer carefully inspected the valve ring before installing it.
工程师在安装前仔细检查了阀门环。
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3.The new valve ring is more durable than the old one.
新的阀门环比旧的更耐用。