Area 51 staff had to regularly interrupt such tests and hurry prototypes into "hoot-and-scoot sheds", lest they are detected by Soviet spy satellites.
51区的工作人员不得不经常中断这种测试，匆忙地将这些样机送到“紧急藏身处”，以免它们被苏联间谍卫星发现。
Instead America supported a less ambitious treaty that relied on “national means and measures” (spy satellites and the like), which few others have.
取而代之的是美国另一项提案，取缔核武的雄心壮志较低，仰赖著「国家的设备和措施」（间谍卫星之属），而且很少有其他国家也拥有这种设备。
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。
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