rack and opinion

• 齿轮齿条

rack and opinion的用法和样例：

例句

1. A rack-and-pinion gear set is enclosed in a metal tube, with each end of the rack protruding from the tube.
   整个齿轮齿条式转向器装载金属壳内，其齿条从转向器伸出来与转向摇臂连接。
2. A toothed rack was commonly adopted for the automatic screw thread rotational unloading.
   自动旋转脱螺纹一般采用齿轮齿条机构或液压齿轮机构。