Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/dd9fad65b0019c47a340c4b2e9f1fc7f.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 counter lag-time是什么意思，counter lag-time的翻译，counter lag-time音标、读音、用法和例句_甲百匯小鸡词典
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。