指数

We must calculate their topographic indices in order to get their topographic index frequency distributions.

为了得到它们的地形指数频率分布，需计算它们的地形指数。

A new group of autocorrelation topological index (At、Bt、Ct and Dt) was designed and developed based on the vertex degree of molecular topology and autocorrelation function of mathematics. The autocorrelation functions were calculated from the square root of the vertex degree、modified vertex degree and their combination, that is d i、、 and . The matrix description method and the algorithm of computer software have been developed for the new topological index calculation.

针对目前自相关拓扑指数的计算完全依赖于实验参数而存在的问题，以分子拓扑学点价和自相关函数研究为基础，将点价、修正点价及其组合：、、、的平方根分别作为自相关函数中的f，设计开发出一组新的以点价计算为基础的自相关拓扑指数At、Bt、Ct和Dt。

In this article,chiral topological index was obtained by extending Am index devised by our laboratory.

我们对 Am指数进行了扩展，得到 e Am指数，并将其应用于手性分子的结构-活性相关研究。

According to element bonding parameter topological index and calculate topological index of 36 variety metal ions.

本文应用元素键参数拓扑指数计算了36种金属离子的拓扑指数，用于关联金属离子与氨三乙酸配位稳定常数的研究，得到了好的线性相关性。

An element bonding parameter topological index HLA is proposed based on topological principle and valence shell electron structural character.

基于元素键参数拓扑指数原理以及镧系元素价层电子结构特征构建了一种新的拓扑指数HLA。

This article made a detailed analysis of the types, levels and spatial distribution characters of tourism resources in Hangzhou, applied index R to make a quantitative analysis of the spatial distribution pattern, and used topological index in graph theory to make a qualitative analysis of its spatial structure.

本文具体分析了杭州市旅游资源的类型特征、等级特征和空间分布，用最邻近指数R对其分布形态进行了定量分析，并运用图论学中的有关拓扑指数对其空间结构进行了定量分析。

A new element bonding parameter topological index H_ is based on H_E.

在元素键参数拓扑指数 HE的基础上定义了一个新的拓扑指数HER并与镧系元素的11种物理化学性质显示高度的线性相关性。

SOTI (Structure-Oriented Topological Index) is a two-directional topological index proposed in this thesis, from which the molecular structure can be induced.

双向SOTI(Structure-oriented Topological Index)拓扑指数是本文提出的一种新的、能够反推结构式的拓扑指数。

The Markov forecast model, time series method (triple exponential smoothing method and a combined of triple exponential smoothing method and Markov model) and stepwise regression forecast method were choosed, and the basic principles and processes of the three models were analyzed and compared. Based on above, the three methods were used to predict population dynamic of Cricetulus barabansis and Meriones unguiculatus. The characteristic, accuracy and applicability of three methods were analysed and compared. The results showed that,(1) Markov model belongs to a middle-long time forecast model, and the result was interval forecast, but it reached the requirement of forecasting the harmful population dynamic of rodents. Through the forecasted population dynamic of Cricetulus barabansis and Meriones unguiculatus in 2004, the results were accurate; this meant that Markov model was a good forecast model to Cricetulus barabansis and Meriones unguiculatus population.

选择马尔可夫链预测模型、时间序列分析法(三次指数平滑法、三次指数平滑法和马尔可夫链预测模型的组合预测法)和逐步回归预测法，对这三种模型的基本原理、模型的构建过程进行对比分析，在此基础上用此三种方法预测了黑线仓鼠和长爪沙鼠的种群数量，并对三种方法的特点、预测的准确度和适用范围进行了比较分析，结果表明：(1)马尔可夫链预测模型属于中长期预测，预测的结果为区间预测，但对于害鼠种群数量的预测来说已经达到要求，通过对2004年黑线仓鼠和长爪沙鼠种群数量的预测，预测的结果都比较准确，这说明对于预测黑线仓鼠和长爪沙鼠种群的数量动态，马尔可夫链模型是比较好的模型。

The mathematic model of Roga index and Caking index was obtained by the calculate formulas of them combining with triturate dynamics,the conversion method of Roga index and Caking index was given in this paper.

由粘结指数及罗加指数的计算公式，结合磨碎动力学，导出了两者之间的数学模型，提出了两者相互换算的计算方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。