“凸轮”的英语？

调节螺钉落在凸轮高点上.The adjusting screw rests on the high step of the cam.从1958年起, 便已使用带有单顶置凸轮机的发动机.Since 1958, an engine with a single overhead camshaft has been used.气门挺杆为一圆筒体, 坐落在凸轮上.The valve lifter, a round cylinder, rides ...

“凸轮”的拼音为：tū lún...