Russia and China are ahead of the US in developing and testing hypersonic missile technology, especially when it comes to building wind tunnels. CNN's Kristin Fisher has the details.
원문출처 : https://www.cnn.com/videos/world/2022/05/31/hypersonic-missiles-russia-china-us-warfare-technology-ebof-fisher-pkg-vpx.cnn
원문출처 : https://www.cnn.com/videos/world/2022/05/31/hypersonic-missiles-russia-china-us-warfare-technology-ebof-fisher-pkg-vpx.cnn