基本解釋[經(jīng)濟(jì)學(xué)]拉鏈刮板輸送機(jī)詞組短語(yǔ)短語(yǔ)chain n scraper bar conveyer 拉鏈刮板輸送機(jī)water -sealed chain scraper bar conveyer 水封拉鏈機(jī)chain scraper bar conveyer更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)拉鏈刮板輸送機(jī)