名词短语
中文翻译：参与和脱离的齿轮
同义词：
['engagement', 'disengagement']
例句：
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1.The engaging and disengaging gear in the engine is crucial for its operation.
发动机中的参与和脱离的齿轮对于其运行至关重要。
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2.The engagement and disengagement of the gears can be controlled by a simple switch.
齿轮的参与和脱离可以通过一个简单的开关控制。
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3. The engaging and disengaging gears are essential for maintaining the proper functioning of the machine.
参与和脱离的齿轮对于保持机器正常运行至关重要。