短語詞組短語annular r gear 環(huán)形齒輪Annular gear machining 內齒輪加工rotor annular gear 轉子內齒圈modified annular gear 變位內齒輪gear annular 內齒輪annular -sliding tooth gear 活齒內齒輪gear -annular 齒環(huán) 返回 annular gear