hypersonic [ˌhaɪpə'sɒnɪk]以下由轻松背单词网站提供
单词级别附加级基本释义极超音速的,远超过音速的参考例句Hypersonic wind tunnels operating at very low densities were developed starting in about 1960. 低密度超音速风洞大约开始发展于1960年。 来自辞典例句It would reach hypersonic speeds -- five times the speed of sound. 也就是说,要使飞机达到特超音速—即音速的五倍。 来自互联网 推荐阅读 |