Hypersonic aircraft refers to the speed of sound, at least 5 times more than the aircraft.
高超音速飞机是指超过音速至少5倍得飞机。
英文例句大全为您提供hypersonic speed英文例句大全,hypersonic speed英文造句,关于hypersonic speed的英语句子,单词hypersonic speed怎么造句,hypersonic speed英文例句大全有哪些,哪些英语句子是关于hypersonic speed,英语单词hypersonic speed的句子,单词hypersonic speed如何造句,hypersonic speed怎么造句等。