事实是，1994年2月，中国航空技术进出口总公司与美国麦道公司签订了购买二手设备的合同，共进口机械加工设备和仪器200多台（件）。

• In fact, in February 1994, CATIC and McDonnell Douglas signed a second-hand equipment purchase contract, to the effect of importing over 200 sets of machining equipment and instruments.