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