自控專業學電磁場幹什麽？自控涉及的電都是閉路的沒有發散到空間裏

來源: aebny 於 2019-09-27 11:28:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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