短語詞組短語mechanism with planet gear wheel 行星機構(gòu)Planet Wheel Gear System 行星齒輪系統(tǒng)differential planet wheel 差速器行星齒輪planet wheel deceleration box 行星減速箱Planet Wheel Specification 行星輪規(guī)格planet wheel train 行星輪系planet gear planet wheel 行星齒輪planet cycloidal needle wheel 行星擺線針輪planet wheel carrier 行星齒輪軸架;行星齒滑輪架 返回 planet wheel