很好奇,天上有那么多卫星在飞,哪个国家搞搞核试验啊,建了新设施啊,或者军队要移动,不是一定会被发现吗?也不能全部都在地下吧?

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@hermesbirds 地下设施主要意义是抗打击,还是会被发现的。因为要有人员和物资出入……

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