Warning: file_put_contents(/www/wwwroot/ppbbbu/oiqp.com/cache/1e8f21ce596606674aec7a73cc5fb041.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55 radiotelephony例句_radiotelephony英汉例句_radiotelephony双解例句_奇葩剧汉英词典
Lee de Forest reads a paper before an AIEE meeting on the Audion, first of the vacuum tubes that would make long distance radiotelephony possible. 电子管的首次使用将使长途无线电话变为可能。