研究人员为了搞清楚这种特性的原理机制，就其抗氧化性能进行了化学性质方面的研究。
In order to understand the source and mechanism of this quality, a study was conducted to look into the chemical nature of roasted coffee, with respect to its antioxidant properties.
本文介绍了壳聚糖的结构特性、重要的化学性质及衍生物的应用。
This paper introduces the structural characteristics and important chemical properties of chitosan, and the applications of its derivatives.
本文就笔者搜集到的几种不同的膨胀土样进行了基本特性研究，如物质组成、物理化学性质、微观结构等。
The basic properties of some expansive soils such as composition, physic-chemical properties and microstructure etc. are studied in this paper.
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