因为采购订单不包含详细产品信息，所以需要进行单独查询，以便从产品表中查找产品详细信息。
Since the purchase order contains no detailed product information, a separate query is needed to find the product details from the product table.
在采购订单和产品表之间创建联接以获取产品详细信息。
Create a join between the purchase order and the product table to get product details.
在采购订单和产品表之间创建联接以获取产品详细信息。
Create a join between the purchase order and the product table to get product details.
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