名词
中文翻译：滑环
同义词：
['slip ring', 'slip joint']
例句：
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1.The engineer designed a new type of slip-ring for the machine.
工程师为机器设计了一种新型的滑环。
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2.The scientist used a slip-ring to connect two circuit boards together.
科学家使用滑环将两个电路板连接在一起。
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3. The old clock had a worn out slip-ring that needed to be replaced.
旧时钟有一个磨损的滑环，需要更换。