近年来国际航空运输业不景气,客机订货直线下跌。航空公司在过去4年亏损达140亿美元。因此,世界各大飞机制造商激烈争夺市场。据估计,2010年以前世界航空公司需增加12000架喷气客机,价值8150亿美元。波音公司从1990年起开始设计波音777型双引擎喷气客机就是为了争夺这个巨大的市场。它的对手——欧洲空中巴士公司和麦道公司也在研制新型客机,同波音激烈竞争。 In recent years, the international air transport industry has been in a downturn and airline orders have plummeted. Airlines have lost $ 14 billion over the past four years. Therefore, the world’s major aircraft manufacturers fierce battle for the market. It is estimated that by 2010, the world’s airlines need to increase 12,000 jetliner, worth 815 billion US dollars. Boeing has been designing the Boeing 777 twin-engine jetliner since 1990 to fight for this huge market. Its rivals, European Airbus and McDonnell Douglas, are also developing new passenger planes to compete fiercely with Boeing.