短語詞組短語Planetary gear drive mechanism [機(jī)]行星齒輪傳動機(jī)搆Planet gear drive mechanism 微型行星齒輪減速器harmonic gear drive mechanism [機(jī)]諧波齒輪傳動機(jī)搆NGW planetary gear drive mechanism NGW 型行星齒輪傳動機(jī)搆 返回 drive gear mechanism