The recent advances in the study on the modification of chitosan and the modified chitosan applications in biomedical field were reviewed in this paper.

简述了壳聚糖的化学改性方法，改性壳聚糖的特殊功能及其在生物医学领域中的应用研究进展。

youdao

The structural dynamic SA in project is of great importance for the study on dynamic design, optimization design, control theory and dynamic modification etc.

工程结构的动态特性灵敏度分析对工程结构的动态设计、优化设计、控制理论和动态修改等方面的研究有着十分重要的意义。

youdao

Study on modification of fibered siliceous lime and sepiolite is carried out and the optimal modification process is obtained.

针对纤维状的硅石灰和海泡石进行了改性研究，获得了硅石灰和海泡石的最佳改性工艺。

youdao

She says a four-year scientific study initiated by the World Bank says there is little role for genetic modification in feeding the poor on a large scale.

VOA: standard.2009.10.21