rack and pinion
英
美
- and conj.和；加；接着；那么
- pinion n.鸟翼；小齿轮v.剪断翼尖；绑住...两臂
- rack n.行李架；（放衣物、碗碟等的）架子；拷问台；折磨；（比赛开始前固定球位置的）三角框vt.使痛苦；把...放在架子上；累计取得
Noun:
-
a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa)
