“齿轮的”用英语怎么说？

“齿轮的”的拼音为：...

你为什么不先扭紧小齿轮的螺帽?Why don't you try tightening the pinion nut first?阐述了用化学蚀剂法加工 非圆齿轮 的方法.Setting forth a method of utilizing chemicals to process non - circular gear .因这些小齿轮与不小齿轮的啮合场所是保持的.As a result of these small gea...