Warning: file_put_contents(): Only 0 of 4942 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/28094.com/index.php on line 55 excitation winding time constant是什么意思，excitation winding time constant的翻译，excitation winding time constant音标、读音、用法和例句_贰靶汉英词典