Warning: file_put_contents(/home/www/wwwroot/tjuzi.com/cache/17054f4fd8865156803a75fc89f3330e.txt): failed to open stream: No space left on device in /home/www/wwwroot/tjuzi.com/index.php on line 55 counter time-lag是什么意思，counter time-lag的翻译，counter time-lag音标、读音、用法和例句_橘子化妆朗文词典
It is hard to build a precise math model for counter-gravity casting process for its time lag, uncertainty and complexity. 由於反重力鑄造過程的時滯性、不確定性、複襍性，難以建立精確的數學模型。