| 释义 |
空天飞机kōngtiān-fēijī能在机场跑道上水平起飞和降落,既可在大气层内飞行,也可在大气层外飞行的飞机。动力装置在大气层内用吸气式发动机,在大气层外用火箭发动机。{space plane; plane that takes off from and lands on an airport runway horizontally, capable of travelling both inside and outside the atmospheric layer. It is powered by an air-breathing engine when flying inside the atmosphere, and a rocket engine when flying outside it.} |