fusée à propergol solide
/fyzˈe a pʁopɛʁɡˈɔl solˈid/
n
English: solid rocket booster · 固体火箭助推器
Sens：Solid-fuel thruster that provides most of the lift during the first few minutes of flight, after which it separates.
English: solid rocket booster · 固体火箭助推器