Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/b9d6223aba0aa471527f6109ae9ee568.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 sand blaster是什么意思，sand blaster的翻译，sand blaster音标、读音、用法和例句_果味酸柯林斯词典
This project aims to develop an auto-control unit of a direct-control optimizing system of green sand quality for a sand mixer. 本课题的目的在于研制一种用于型砂质量直接优化控制系统的混砂机加料自动控制单元。