片语
compound planetary gear train复合行星齿轮系
single planetary gear train[机]
epicycloidal or planetary gear train周转轮系
planetary differential gear train封闭式差动轮系
differential planetary gear train差动轮系机构
closed planetary gear train封闭式行星轮系
k planetary gear traink行星轮系
Elementary planetary gear train周转轮系
planetary bevel gear train行星伞齿轮系