SHORT-WAVE COMMUNICATION EXERIMENT AT ANTARCTIC GREAT WALL STATION AND XINSIANG, HENAN PROVINCE,AND THE PROBLEM OF PROPAGATION BEARINGS是什麼意思_SHORT-WAVE COMMUNICATION EXERIMENT AT ANTARCTIC GREAT WALL STATION AND XINSIANG, HENAN PROVINCE,AND THE PROBLEM OF PROPAGATION BEARINGS在線翻譯_英語_讀音_用法_例句