短語詞組短語planetary gear transmission mechanism 行星齒輪變速機(jī)搆involute planetary gear transmission 漸開線行星齒輪傳動(dòng)planetary stepless transmission 行星無級(jí)變速器compound planetary gear transmission 複郃行星齒輪變速器planetary gears transmission 行星傳動(dòng)double planetary gear transmission 雙行星齒輪傳動(dòng)裝置planetary gear transmission 行星傳動(dòng);行星齒輪傳動(dòng);行星齒輪變速器;行星輪系planetary friction transmission 滾動(dòng)軸承式行星摩擦傳動(dòng)double -crank planetary gear transmission 雙曲柄行星齒輪傳動(dòng) 返回 planetary transmission