电磁波速度是30万公里每秒，和光速一样，超音速应该不会影响电磁波的接受

来源: 年轮于 2024-01-20 17:38:01 [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.