片语
double-crank planetary gear transmission双曲柄行星齿轮传动
planetary gear transmission mechanism行星齿轮变速机构
internal gear planetary transmission内齿行星齿轮
planetary gear final transmission行星式最终传动
compound planetary gear transmission复合行星齿轮变速器
double planetary gear transmission双行星齿轮传动装置
involute planetary gear transmission渐开线行星齿轮传动
planetary gear auto transmission行星齿轮自动变速器
large-scale planetary gear transmission system大型行星齿轮系统