The appearance of the nonmetallic compound pipeline has sought out a efficient path for the problem settling.
非金属复合管道的出现，为解决这一课题找到了一条有效途径。
Sale promotion pricing is one of the cried out for settling in the pricing problem.
商品定价问题研究中促销定价又是迫切需要解决的问题之一。
Sale promotion pricing is one of the cried out for settling in the pricing problem.
商品定价问题研究中促销定价又是迫切需要解决的问题之一。
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