subsonic speed

• 亚音速

subsonic speed的用法和样例：

例句

1. Supersonic aircraft will not make all subsonic aircraft obsolete.
   超音速飞机不会使所有亚音速飞机都淘汰。
2. This airplane can go out to high subsonic speeds very easily without using afterburner.
   这架飞机能够很轻松地在不打开加力的状态下飞到高亚音速。