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波音民用飞机集团于1997年9月24日宣布，该公司B757系列中型号最新、机身最长的B757－300已展开组装工程。在波音所有的衍生项目中，B757－300的设计、生产与交付流程需时最短。从1996年11月开始设计飞机结构算起，至1999年1月交付给德鹰航空公司（CondorFlugdi－enst）为止，?
Boeing Commercial Aircraft Group announced on September 24, 1997 that the company’s newest B757 series mid-size model and the longest fuselage B757-300 have already been assembled. The B757-300 has the shortest design, manufacturing and delivery processes among all of Boeing’s derivative projects. From the beginning of designing the aircraft structure in November 1996 to delivery to Condor Flugdi-enst in January 1999?