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武器系统美国空军、海军和国防高级研究计划局正在集中论证可望在２０１０年服役的高超声速对陆攻击导弹方案。空军在这方面的主要计划是高超声速技术（ＨｙＴｅｃｈ）计划。１９９７年末，空军选择普惠公司继续进行ＨｙＴｅｃｈ计划。该计划预定于２００１～２００２年结...
Weapon Systems The U.S. Air Force, Navy, and Defense Advanced Research Projects Agency are focusing on hypehonic land-based missiles that are expected to be in service in 2010. The Air Force’s main program in this area is the HyTech program. In late 1997, the Air Force chose Pratt & Whitney to continue its HyTech program. The plan is scheduled to end in 2001 ~ 2002 ...