Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/019838f6897a6626659e17f2ee9437ca.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 draa是什么意思，draa的翻译，draa音标、读音、用法和例句_贰靶汉英词典
If it could not be satisfied, the vibration serviceability should be evaluated by a dynamic response analysis approach (DRAA). 不能达到频率要求时，再进一步采用动力响应法分析。