Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/1b2717bb1fbe02f506c64340f16708df.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.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_2020年的事情英文词典
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。