基本解釋[經(jīng)濟學]箱封英漢例句雙語例句The invention relates to a locking mechanism of a railway freight car, in particular to a locking device arranged on a lower side door of a rail freight gondola car .本發(fā)明涉及一種鐵路貨車鎖閉機構，特別是涉及一種鐵路貨運敞車下側門的鎖閉裝置。locking freight car更多例句專業(yè)釋義經(jīng)濟學箱封