基本解釋行星減速齒輪詞組短語短語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 行星齒輪敺動自動扶梯planetary reduction gear更多詞組專業(yè)釋義機械工程行星減速器行星減速裝置