According to production department's requirements of delivery time and quality of raw materials (mainly on rapeseed), implement purchasing work of rapeseed in designated fields with reasonable price.
根据生产部门对原材料(要是油菜籽)货时间及其品质要求，以合理的价格完成指定区域的油菜籽收购工作。
The delivery time consists of certain designated days during the delivery month.
而交割时间包含在交割月的某多少个具体指定交易日。
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