洁食认证过程需要生产人员的紧密配合。
The maintenance of a kosher program requires the close involvement of production people.
我买了犹太洁食食谱，盐，面粉，糖，新的搅拌碗。
Okay, I've got the kosher cookbook, salt, flour, sugar, new mixing bowls.
关于洁食律法的著述可谓卷帙浩繁，其中许多成书于两千多年前。
Many of these books date back as far as two thousand years ago.
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