rack-and-pinion

例句：

1. 1.The engineer designed a new rack and pinion system to improve the machinery's efficiency.
   工程师设计了一种新的滑轮和曲柄机构来提高机器的效率。
2. 2. The old clock had a simple rack and pinion mechanism that was still functional after many years of use.
   这把旧时钟有一个简单的滑轮和曲柄机构，经过多年的使用仍然功能正常。
3. 3. The car's engine uses a rack and pinion mechanism to convert the engine's rotation into forward motion.
   汽车的发动机使用滑轮和曲柄机构将发动机的旋转转化为前进运动。