The regulator demanded instead that Ms Dashtaki set up a "Grade a" dairy plant, just as a large factory processing raw milk would be required to do.
管理者要求Dashtaki女士建立一座“A级”乳制品工厂，就如大型生牛乳加工厂所要求的那样。
2
Grade a milk is the best quality.
等级的牛奶品质最好。
3
On the other hand, lactoperoxidase system could all improve the hygienic grade about 1 or 2 grade, and could not affect the nutrition composition of the preserved milk.