mechanism with planet gear wheel行星机构
Planet Wheel Gear System行星齿轮系统
differential planet wheel差速器行星齿轮
planet wheel deceleration box行星减速箱
Planet Wheel Specification行星轮规格
planet wheel train行星轮系
planet gear planet wheel行星齿轮
planet cycloidal needle wheel行星摆线针轮
planet wheel carrier行星齿轮轴架;行星齿滑轮架
N（名词） any one of the wheels of an epicyclic gear train that orbits the central axis of the train 行星齿轮