基本解釋[經(jīng)濟學(xué)]卸料滑槽詞組短語短語steel silowith emptying chute 帶空滑槽的鋼制青貯塔steel silo with emptying chute 帶有進料筒的鋼制青貯塔emptying chute更多詞組專業(yè)釋義經(jīng)濟學(xué)卸料滑槽