One theory is that it is a spy plane, designed to catch savvy targets that know how to go to ground when spy satellites—which have predictable orbits—are overhead.
这些精明的目标发现间谍卫星（有可预见的轨道）位临上空时，能够知道如何隐蔽自己。
One theory is that it is a spy plane, designed to catch savvy targets that know how to go to ground when spy satellites - which have predictable orbits-are 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。
One theory is that it is a spy plane, designed to catch savvy targets that know how to go to ground when spy satellites - which have predictable orbits-are 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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