基本解釋[經(jīng)濟(jì)學(xué)]折曡式輸送機(jī)詞組短語短語accordion n conveyer 折曡式輸送機(jī)accordion conveyer更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)折曡式輸送機(jī)