英漢例句雙語例句So far NASA is exploring two options for propulsion there ? a nuclear thermal rocket and a chemical engine.迄今為止NASA研究了兩種前往那里的備選推進器：核熱火箭和化學發(fā)動機。The fundamentals, developments and applications of Nuclear Thermal Rocket Propulsion will be discussed here.對核火箭的原理、發(fā)展狀況以及應用前景進行了介紹。nuclear thermal rocket更多例句詞組短語短語nuclear -thermal rocket 熱核火箭nuclear thermal rocket更多詞組