Warning: file_put_contents(): Only 0 of 5098 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/62383.com/index.php on line 55 unnel是什么意思，unnel的翻译，unnel音标、读音、用法和例句_流逝汉英词典
Wind unnel tests were performed and on/off control law was adopted.Results show that the critical flutter peed of the model is increased by 13%. 試騐結果表明，採用開關控制方法，可以使模型的顫振速度提高約13%25。