用于士兵交谈的通讯卫星,甚至包括为士兵和轰炸提供目标导航的全球定位系统卫星,
designed to guide soldiers and bombs to their targets, and now expanded to aid civiliannavigation.
现在其应用范围已扩大到援助民用导航。
But there are more exotic programmes.
但也有着更多的特殊计划。
The air force runs one for anti-satellite warfare, designed to destroy or disable enemybirds.
美国空军实施了一项反卫星战计划,旨在破坏敌方卫星或令其失效。
Another includes experimental aircraft, such as the X-37, a cut-down, unmanneddescendant of the space shuttle.
另一项计划则包括研制诸如X-37这样的实验飞机,它是美国航天飞机的简化及无人驾驶版本。
The air force will not say what the X-37 is for.
美国空军拒绝透露X-37的用途。
One theory is that it is a spy plane, designed to catch savvy targets that know how to go toground when spy satelliteswhich have predictable orbitsare overhead.
有一种说法是X-37是一架间谍飞机,旨在捕获各种精明的目标。这些精明的目标发现间谍卫星位临上空时,能够知道如何隐蔽自己。
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