assisted take-off rocket

• 火箭助推器,起动火箭

assisted take-off rocket的用法和样例：

例句

1. NASA is now checking on the damage of lightning on Endeavor and its solid rocket booster.
   国家航空航天署正在检查奋进号航天飞机及其固体火箭助推器是否被闪电损坏。