因为高空气球的红外信号和金属反射信号都很弱，美国用的是近距导弹+飞行员头盔瞄准。

来源: uptrend 于 2023-02-12 09:31:30 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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