Warning: file_put_contents(): Only 0 of 5413 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/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_沉淀汉英词典
It is hard to build a precise math model for counter-gravity casting process for its time lag, uncertainty and complexity. 由于反重力铸造过程的时滞性、不确定性、复杂性，难以建立精确的数学模型。