到底是很么引信，瞬发引信还是近炸引信？机炮弹头小，近炸引信要多近引爆才能有效？

来源: uptrend 于 2023-02-12 09:59:28 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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