The industrial cluster mode already became main production mode in these enterprises, in result they have reduced the product cost and improve productive efficiency by industrial advantage.

它们通过采用产业集群化的生产模式，发挥整体行业的产业优势，大大降低了产品成本，提高了产品的生产效率。

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Production theory and processes of modified urea-formaldehyde resin used in oil well water shutoff and some influence on product performance resulted by main factor in the production are introduced.

介绍了适用于油田油井堵水用的改性脲醛树脂的生产原理和工艺，以及生产中的关键因素对产品性能的影响。

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The main content of the existing product produced by a production process of paratoluenesulfonic acid does not exceed 97 percent and cannot meet the requirement of pharmaceutical synthesis.

现有的对甲苯磺酸的生产工 艺生产出的产品，主含量不超过97％，不能满足一些医药合成的需要。

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