In a given crisis and against a specific enemy, some sort of loitering boost-phase system could well make sense.
在危机已知，而且在针对某一特定敌人的情况下，某种处于上升阶段的寻飞系统是有意义的。
2
A key component of an air-launched missile defense system demonstrated its ability to acquire and track a ballistic missile target in the boostphase, according to Raytheon.
日前，一种空射导弹防御系统的关键组成部分成功演示了对助推段弹道导弹的截获与跟踪能力。
3
The initial boostphase is easiest to target, but requires extremely fast reaction times.