名词
中文翻译：扩张环
同义词：
['expanding ring', 'expandable ring例句：1. The engineer used an expander ring to fix the leaky pipe.（工程师使用一个膨胀环来固定漏水的管道。）2. The expanding ring was designed to fit snugly into the socket.（膨胀环设计得可以紧密地插入插座。）']
例句：
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1. The engineer used an expander ring to fix the leaky pipe.
工程师使用一个膨胀环来固定漏水的管道。
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2. The expanding ring was designed to fit snugly into the socket.
膨胀环设计得可以紧密地插入插座。
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3.The expanding ring gradually expanded until it covered the entire surface.
膨胀环逐渐膨胀，直到覆盖整个表面。