| 释义 |
〔supersonics〕The study of phenomena produced by the motion of a body through a medium at velocities greater than that of sound.超音速（空气动力）学：研究物体以大于音速的速度穿过媒介产生的现象〔aerostat〕An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.浮空器：从周围空气的浮力而不是从空气动力获得提升力的航空器，特指气球或飞船 |