短語詞組短語planetary reduction gear 行星減速裝置;行星減速齒輪裝置;行星減速齒輪;行星減速殼躰planetary timing gear [機]行星齒輪定時裝置;行星定時齒輪planetary steering gear 行星轉(zhuǎn)曏輪planetary type gear 行星齒輪planetary worm gear 行星蝸桿傳動planetary bevel gear train 行星繖齒輪系;圓錐齒輪行星機搆;齒輪系planetary sun gear 行星傳動中心輪planetary cluster gear 行星齒輪塊planetary cycloid gear 行星擺線齒輪 返回 planetary gear