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For this reason, the project creates the mathematical model and numerical method of backcalculation of layer moduli in asphalt pavement based on homotopy method in accordance with the theories of differential topology and optimization. Through selecting the rational objective functions of backcalculation of moduli, a large number of deflection basins of asphalt pavement with FWD are made the backcalculation of moduli to solve effectively the present problems and ensure the reliability of backcalculation of layer moduli in asphalt pavement.

为此，本项目根据微分拓扑和最优化理论，建立了基于同伦方法的沥青路面模量反算的数学模型和计算方法，并通过选取合理的模量反算目标函数，对大量FWD实测的沥青路面弯沉盆进行了模量反算，从而有效地解决了目前存在的问题，保证了沥青路面模量反算的可靠性。

With this approach, a mathematical model of ASVG is developed. The method is simple and can be used to analyze the detailed internal properties of an ASVG. It overcomes the disadvantages of the two methods generally used, one is a method for modeling an ASVG by getting differential equations according to the topology of the ASVG circuit, which is very complicated and it is difficult to get a unified model expression of an ASVG; the other is a method for modeling an ASVG by considering the whole ASVG as a voltage source, which is too simple to analyze the detailed internal properties of ASVG.

该方法既克服了根据ASVG装置拓扑结构列写微分方程组的建模方法过于复杂且不易获得统一模型表达式的缺点，同时又克服了将ASVG装置等效为电压源的建模方法太简单而无法用于分析ASVG装置内部性质的缺点，具有建模简单又能分析ASVG装置的内部性质的优点。

Connected topological manifolds have a well-defined dimension; this is a theorem rather than anything a priori .

连接拓扑流形的具有明确的层面，这是一个定理，而不是任何先验。

He let both of them lie, and went in pursuit of Abas and Polyidus, sons of the old reader of dreams Eurydamas: they never came back for him to read them any more dreams, for mighty Diomed made an end of them.

他丢下二者，扑向阿巴斯和波鲁伊多斯，年迈的释梦者欧鲁达马斯的两个儿郎。然而，当二位离家出征之际，老人却没有替他们释梦——强有力的狄俄墨得斯杀了他俩。

Based on complex network theory, the qualitative analysis of the topology of NCW is carried out by establishing a four-tier gird diorama. Then we discovered that NCW has inherent scale-free feature.

基于复杂网络理论，通过建立四重网格立体模型，定性分析了网络中心战的拓扑结构，从中发现其具有无尺度的基本特征。

In this paper,from the six-term exact sequence,it is proved that the direct sum of Z and K1 -group of a Toeplitz algebra is always isomorphic to the topological K1 -group of the boundary of the relative domain.

本文通过六项正合列计算出，在强拟凸域上，它的拓扑边界上连续函数代数的K_(1-)群同构于区域上Toeplitz代数的K_1-群与Z的直和。

According to the characteristics of directed line objects,such as track,a detailed topological relation model is proposed,thus the complex details can be captured.

针对运动轨迹等有向线对象的特点，提出了细节拓扑关系模型，以解决现有模型不能区分复杂细节的问题。

Artificial intelligence ; spatio-temporal reasoning ; directed line objects ; detailed topological relation model

人工智能；时空推理；有向线对象；拓扑关系细节模型

Even if the animal once "knew how" to pounce on prey, peripheral-central disarrangement will permanently incapacitate the animal from pursuing the necessities for its livelihood.

即使动物一度"知道如何"会扑到猎物，外围中心的混乱会使永久使去能力的动物的追求生活的必然性。

In this algorithm,by restricting the selection rule of a discrete time series,an appropriate discrete model of satellite time-varying topological networks can be obtained.

卫星网络是一种特殊的时变网络，由于卫星本身的特点，网络的拓扑结构、各边的权值都随时间变化而变化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐