名词
中文翻译：Unknown
同义词：
['bend', 'flange', 'ridge', 'protrusion']
例句：
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1. The car's flange is designed to fit perfectly into the frame.
这辆车的凸缘设计得可以完美地嵌入车架。
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2. The machine has a flange that can be used for attachment.
这台机器有一个凸缘，可以用来安装。
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3. The door had a flange that could be removed for cleaning.
门有一个凸缘，可以拆卸用于清洁。