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1. The car's engineis designed to drive idler gear,which helps it maintain a smooth and efficientoperation.
汽车发动机设计用于驱动惰轮齿轮，这有助于它保持平稳和高效的运行。
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2. In the manufacturing process, the idler gear plays a crucial role in ensuringthe proper functioning of the machine.
在制造过程中，惰轮齿轮起着至关重要的作用，确保机器的正确运行。
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3. The engineer carefullyselected the right idler gear to matchthe speed of the motor, ensuring optimalperformance.
工程师仔细选择了合适的惰轮齿轮来匹配电机的速度，以确保最佳性能。