单词 | rack-and-pinion |
释义 | rack-and-pinionnoun 1. a device for converting rotary into linear motion and vice versa, in which a gearwheel (the pinion) engages with a flat toothed bar (the rack) adjective 2. (of a type of steering gear in motor vehicles) having a track rod with a rack along part of its length that engages with a pinion attached to the steering column |
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