名词
中文翻译：旋转接头
同义词：
['rotating joint', 'rotatingcoupler']
例句：
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1. Themachine has a rotary joint that allowsit to rotate freely.
这台机器有一个旋转接头，可以自由旋转。
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2. The engineerused a rotary joint to connect thetwo pieces of equipment.
工程师使用旋转接头将两台设备连接起来。
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3. The rotary joint is essential for maintaining the smoothoperation of the machinery.
旋转接头对于保持机械的顺畅运行至关重要。