常見例句雙語例句A new supersonic combustion ramjet, or scramjet, engine gets put through its paces at a NASA research center in a ground-based test that simulated Mach 5 conditions in 2008.在美國宇航侷研究中心，一個新的超音速燃燒沖壓噴氣發(fā)動機（scramjet）通過了模擬2008年5月5日環(huán)境的地麪測試。 返回 supersonic combustion ramjet engine