B21本身就是预警机？那美国还保留E2/E3研发E7做什么？预警机的任务是发现敌机和指挥己方战斗机拦截，B21能干这活？

来源: 天青水蓝于 2025-01-07 12:33:27 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.