The Launch and Test Range System includes ground-based surveillance, navigation, flight operations and analysis, command and control, communications and weather assets for space missions.

发射和测试系统包括空间飞行的地面系统任务的监视，导航，飞行操作和分析，指挥和控制，通信和气象资产。

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Following launch, the first APKWS rocket was guided by a ground-based laser designator to a ground target.

首枚APKWS火箭发射后，由地面激光指示器引导命中地面目标。

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But settling the matter once and for all may require observations from both a new class of ground-based 30-metre telescopes and the orbiting James Webb Space telescope, due to launch in 2013.

不过，解决这个问题一劳永逸可能需要从一个地面30米的望远镜观测的新的阶级和詹姆斯·韦伯太空望远镜的轨道，由于在2013年发射。

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Because they would be so small and light, it would even be possible to launch them from ground-based guns.

ECONOMIST: Picosatellites

Tommy Franks, Central Command commander, was given essentially a 48-hour window to launch this attack at his discretion, based on the conditions he saw at the ground, when he felt the timing would be absolutely right.

CNN: Jamie McIntyre on the A-Day strikes