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1·To reduce the toxicity by the chemical modification.

通过化学修饰减低神经毒素的毒性。

2·Chemical modification was used tO study the structure and function of BR.

用化学修饰研究了菌紫质的结构和功能的变化。

3·The efforts were made to improve its stabilities by chemical modification.

为了提高其稳定性，对其进行了改性。

4·The characteristics and application of chemical modification are summarized.

综述了各种化学修饰方法的特点和应用。

5·This review covers the recent progress in chemical modification of chitosan.

对近年来壳聚糖在化学改性方面的工作进行了综述。

6·By chemical modification, chitin and chitosan could gain more useful properties.

通过化学改性，甲壳素和甲壳胺可以获得更多的性能。

7·The advances in physical and chemical modification methods of phospholipids were reviewed.

综述了国内外磷脂物理和化学改性方法研究的进展。

8·Chemical modification is one of the most important research fields in the fullerene chemistry.

在富勒烯化学中，化学修饰一直是富勒烯研究的主要领域之一。

9·The advancement in the research of chitin and chitosan's chemical modification is generalized.

介绍了甲壳素和壳聚糖化学改性的研究进展。

10·Chemical modification reactions of dehalogenase YL, 109 and H-2 were carried out by various reagents.

本文用各种化学修饰剂对脱卤酶yl、109和H - 2进行化学修饰。