短語詞組短語hydraulic bell hoist 液壓料鐘卷揚(yáng)機(jī)hydraulic c bell hoist 液壓料鐘卷揚(yáng)機(jī)skip -and-bell hoist 料斗;料鐘卷揚(yáng)機(jī);料鐘絞車hoist bell crank 起重機(jī)直角杠桿 返回 bell hoist