adj.比音速稍慢的；次音速的
I have no idea what subsonic speed is. 我实在不明白什么是亚声速。
Nonlinear Aeroelastic Analysis of Complete Aircraft in Subsonic Flow. 亚音速流中全飞机的非线性气动弹性力学分析。
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。
This paper presents a ALGOL program for Calculating The lift distribution on wings with control surface in steady and unsteady subsonic flow. 本文提供了计算亚音速偏转操纵面机翼的定常和非定常升力分布的算法语言程序。
When the Switchblade returns to subsonic speeds, the wing will rotate back to perpendicular. 当这种“转向翼飞机”恢复亚音速飞行时，机翼就转回垂于直机身的角度。
