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单词 change gear
释义 change gear
noun
1. : a gear by means of which the speed of a mechanism or of a vehicle may be changed while the speed of its driving agent is constant
2. : any of a set of interchangeable gears for varying the speed ratio between two shafts (as on a screw-cutting lathe) — called also change wheel
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更新时间:2024/9/23 14:41:01