侦察卫星典型的轨道高度是几百公里，所以几个小时才能飞过某个固定地点上空，战场实时感知只能靠侦察机（无人机或有人机）

来源: 天青水蓝于 2026-02-09 11:08:32 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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