rocket booster meaning in English

火箭加速器
火箭起动加速器
火箭助推器

Did one of the solid rocket boosters somehow burn through its casing ?
是否是其中一个助推火箭的外壳因某种原因被烧穿？
Comparison of design optimization methods for flight vehicle solid rocket booster
飞行器固体火箭助推器设计优化方法比较
Solid rocket booster , srb
固态火箭推进器
Numerical simulation the process of the rocket booster separating form spaceship
火箭助推器从芯级飞行器动态分离过程的数值模拟