The contract between the parties was part of the standard selling procedure, whereas it was the function of the cooperative to sort the cucumbers by quality classes and to bring the goods to market by way of auctions, advance sale and sale.
双方的合同是标准销售程序的一部分，据此由该合作社按质量等级对黄瓜进行分类并通过拍卖、预售和销售方式出售到市场。