Three- ring gear reducer的用法和样例：
例句
- With the help of this method, the effciency of the serialization design of three-ring reducer can be improved.
该方法可有效地提高了三环减速器系列化设计的效率。 - By means of finite element method,this paper carried out a statics analysis on the complete appliance of three-ring reducer.
三环减速器是以渐开线少齿差行星齿轮传动原理工作的一种新型传动装置。
