B21没有physical试飞还不是造出来了？B21证明现在美国造军机已经不需physical试飞。

来源: 大观园的贾探春于 2025-11-17 10:34:30 [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.