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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According to the Pentagon, night missions include extensive ground operations, takeoffs and landings, and the visual identification of targets, all of which occur in the cover of darkness.

按照五角大楼的要求，夜间任务包括广泛的地面作战、起飞和着陆，以及黑暗笼罩下的目标的视觉辨认。

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Bessler said emergency search and rescue missions and relief operations are ongoing.

贝斯勒说，紧急搜索、救援和救灾行动正在展开。

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General Petraeus appeared to be pointedly rejecting suggestions by some analysts, and some officials and members of Congress, that the United States should scale back its ground operations in Afghanistan and focus on air strikes and special operations missions.

VOA: standard.2009.09.23

The group then walked onto the French side of the bridge for a solemn ceremony to honor the men and women in uniform who have died in NATO missions and operations over the years.

CNN: Obama pleased with NATO allies' pledges of Afghan support

Off-world settlements will provide fuel and life support materials for space missions and planetary operations, and for return of goods to Earth.

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But faster helicopters would be useful, particularly for rescue missions and military operations, so engineers are constantly looking for ways to make them.

ECONOMIST: Chop, chop