经活化指数测定，改性后的重晶石矿物表面的疏水性得到了明显改善；
The effect of the surface modification of barite power was characterized by activity index and FTIR. The activity index indicated that modified barite power has a better hydrophobicity.
本论文第二、第三章利用量子化学参数结合分子拓扑指数以及疏水性参数等研究了88个苯基烷胺类致幻剂的定量构效关系。
In chapter 2 and 3 of the thesis, quantum, topological, and hydrophobic descriptors were combined to study the quantitative structure - activity relationship of 88 phenylalkylamines.
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