B21亚音速速度太慢，没资格跟六代机比。要比还是等画在PPT上的NGAD，SR72飞起来了再说

来源: 奔流12959 于 2024-12-31 23:17:18 [旧帖] [给我悄悄话] 本文已被阅读：次

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