the disposable gears

• 齿轮机构

the disposable gears的用法和样例：

例句

1. The optimal objective of planetary gears can be achieved and the efficiency of design can also be raised by using this method.
   实践结果表明，用本方法设计的行星齿轮机构不但达到了最优化目标，还可以大大提高设计效率。