Usually quantum chemical calculation is an important way to get structural parameters of specific molecules in study of the structure-activity relationship of organic pollutants.

在有机污染物的结构活性关系研究中，量子化学计算是获得分子结构参数的重要途径。

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High-level expression of phytase with high specific activity is an effective way to improve phytase fermentation potency and reduce its production cost.

高效表达高比活植酸酶是进一步提高植酸酶发酵效价、降低植酸酶生产成本的一个有效途径。

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High-level expression of xylanase with high specific activity is an effective way to improve xylanase fermentation potency in recombinant host and decrease its production costs.

高效表达高比活木聚糖酶是进一步提高木聚糖酶发酵效价、降低其生产成本的有效途径。

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