selectivity index

The selectivity index of different plant species changes with grazing The selectivity index of different plant species changes with grazing seasons and stocking rate.

山羊对各种植物的选择性指数随放牧季节和放牧率的不同而发生变化。

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Based on the Wiener index ( W), a harmonic topological index ( H) is proposed. H has been shown good structure selectivity, and appears uniqueness for 149 alkanes from ethane to decane.

基于Wiener指数（W）建立调和拓扑指数（H），该指数对乙烷至癸烷的149种烷烃呈现惟一性表征。

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It is concluded that the index bears good structural selectivity and relativity.

与其它拓扑指数相比,该指数不仅计算简单而且具有良好的结构选择性和相关性.

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The structure selectivity of topological index achieves its own only expression.

拓扑指数的结构选择性满足唯一性表征.

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Study on Molecular Topological Index of Organic Compound QSPR& Physical and Chemical Study of Saturated Chain Hydrocarbon THE CONTROL OF PRODUCTION SELECTIVITY FOR LONG CHAIN HYDROCARBON ON CO-BASED CATALYSTS

有机化合物QSPR的分子拓扑指数研究&饱和链烃化合物物理化学性质的研究钴基催化剂合成长链烃的选择性控制

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The structure selectivity topological index achieves its uniqueness expression.

结构选择性达到惟一性表征.

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The selectivity index for height layer varies with seasons and stocking rate.

各高度草层的选择性随季节推移和放牧率不同而发生变化。

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