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高超音速后继者据《ＡｖｉａｔｉｏｎＷｅｅｋ＆ＳｐａｃｅＴｅｃｈｎｏｌｏｇｙ》１９９４年５月１６日报道：替代已被取消的Ｘ－３０的高超音速系统技术计划（ＨｙＳＴＰ），可望本周有所进展。美国空军／ＮＡＳＡ数据采集联合委员会希望能做出决定，如何实现新计划。最...
Hypersonic successors According to “AviationWeek & SpaceTechnology” May 16, 1994: Alternative to hypersonic system technology program (HySTP) for the X-30 that has been canceled is expected to progress this week. The United States Air Force / NASA Data Collection Joint Committee hopes to make a decision on how to implement the new plan. most...