A set of topological indices was used as molecular structure descriptors to describe the molecular structure characteristics of fatty alcohols.
根据脂肪醇的分子结构特征，提出一组拓扑指数作为表征脂肪醇分子结构的分子描述符。
To mine out the hidden structural features in the multi-dimensional Spaces spanned by several topological indices should be helpful in interpreting the topological index and the built models by them.
挖掘出拓扑指数所隐含的结构特征对于解释拓扑指数以及它们所建立的模型都是很有帮助的。
GIS technology was employed to process the basic data, distill and classify Wuhan's corridors, to obtain topological framework maps and to calculate the landscape pattern indices.
利用GIS处理基础资料，对城市廊道系统进行提取与分类，生成拓扑关系图，并计算景观格局指标参数。
The indices of the total population and cultivated land in Heze District is predicted by using the model of GM(1,1), and the total food output is forecasted based on the topological prediction model.
利用GM（1，1）模型预测了菏泽地区的总人口和耕地面积，用拓扑预测模型预测了其粮食总产，并对三者进行了关联度分析。
The indices of the total population and cultivated land in Heze District is predicted by using the model of GM(1,1), and the total food output is forecasted based on the topological prediction model.
利用GM（1，1）模型预测了菏泽地区的总人口和耕地面积，用拓扑预测模型预测了其粮食总产，并对三者进行了关联度分析。
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