防空炮将炮弹发射到目标所在的大致范围，炮弹爆炸后将弹片布满该区域。
Shells would be fired in the general area of the target, which would then explode, filling the area with shrapnel.
另外还有地理因素：这些国家彼此都非常接近，从发射到目标，一个带核弹头的导弹的飞行时间只要几分钟。
There's also the geographic factor: These countries are very close to one another; a nuclear-armed missile's flight time, from launcher to target, is a few minutes.
其中之一是将小卫星发射到低地球轨道构成卫星星座，以便能提供对目标的持续覆盖。
One calls for launching microsatellites into low Earth orbit in constellations that would provide continuous target coverage.
其中之一是将小卫星发射到低地球轨道构成卫星星座，以便能提供对目标的持续覆盖。
One calls for launching microsatellites into low Earth orbit in constellations that would provide continuous target coverage.
应用推荐