空转轮

空转轮 [kōng zhuàn lún]

1. ■ free pulley; free-rolling wheel; idle gear; idle pulley; idle wheel; idler; idler gear; idling gear; intermediate wheel

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常用词组

1. ■ 空转轮臂 idler arm;

2. ■ 空转轮弹簧 idler spring;

3. ■ 空转轮轴 idler shaft