Defense Secretary Lloyd Austin encouraged CEOs from more than two dozen of America's largest defense companies to accelerate hypersonic weapons development during a high-level meeting Thursday.
원문출처 : https://www.cnn.com/2022/02/03/politics/pentagon-hypersonic-weapons-defense-companies-meeting/index.html
원문출처 : https://www.cnn.com/2022/02/03/politics/pentagon-hypersonic-weapons-defense-companies-meeting/index.html