名词
中文翻译：双法兰
同义词：
['double flange', 'double bonnet', 'double hood']
例句：
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1. The double flange on thedoor is designed to keep the hinges from rubbing against each other.
门上的双法兰设计用来防止铰链相互摩擦。
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2. The double flange onthe roof is used to reinforce the structure.
屋顶上的双法兰用来加固结构。
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3. Thedouble flange on the pipe isdesigned to prevent leaks.
管道上的双法兰设计用来防止泄漏。