短語(yǔ)詞組短語(yǔ)planetary reverse reduction gear 行星式可倒轉(zhuǎn)減速器marine planetary reduction gear 船用行星減速齒輪傳動(dòng)裝置planetary reduction gear main bearing 行星減速齒輪主軸承planetary -parallel reduction gear 行星平行軸減速齒輪箱escalator with planetary reduction gear 行星齒輪驅(qū)動(dòng)自動(dòng)扶梯hydrostatic planetary gear reduction 液壓行星齒輪減速stage planetary gear reduction 二級(jí)行星齒輪減速器planetary gear reduction 行星齒輪減速器 返回 planetary reduction gear