模型理论

The propagation model can be researched in two methods. One is the measurement statistic method based on numerous test data and empiric formula, and the other is the theoretic analysis method based on the radio propagation theory.

传播模型的研究可以分为两类：一类是建立在大量测试数据和经验公式基础上的实测统计方法；一类是基于无线电传播理论的理论分析方法。

The main approach for the analysis is from environment analysis to strategy enaction and strategy evaluation.

本文在环境分析中采用波特的五力模型和价值链理论，在竞争战略分析中则采用了波特的基本竞争战略和蓝海战略的理论。

The main tops of research and creative points of the dissertation are as follows: The gear surface equations are deduced strictly from the space meshing analysis of planar enveloping hourglass meshing surface.

主要研究工作及创新点如下：论文在对平面包络啮合成型运动进行空间啮合分析的基础上，进行了平面包络环面蜗轮副啮合齿面方程的严格推导，进行工具母面坐标系的统一化处理，并利用计算机技术，对平面包络环面蜗轮副啮合型面进行整体理论实体造型，建立了啮合型面的网格化整体理论模型。

The deterministic inventory models are important components of the inventory theory, and they have been deep and widely studied since the EOQ model has been presented. By far, a lot of classic theories have been put forward.

确定性库存模型作为库存论的一个重要组成部分，自经典EOQ模型诞生以来就一直受到深入而广泛的研究，到目前为止，已经形成了许多经典理论。

In this paper,a random wave model based on PM spectrum is established by using energy equipartition theory,and sea wave is simulated by using linear superposition method.

提出基于PM海浪谱的随机海浪模型，该模型应用能量等分理论，并利用线性叠加法进行了海浪的仿真。

Based on system reliability theory,this paper establishes equipment failure rate model with such characteristic.

文章根据系统可靠性理论，建立了具有局部更新特点的设备故障模型，按此模型预计设备的自然寿命，符合设备的实际情况，具有较高的参考价值。

A tensile facture fractal model of grain filled polymer composites on the base of the fractal theory was established,and an equitation of the tensile fracture fractal dimension was proposed.

梁基照，吴成宝，颗粒填充高分子复合材料拉伸断口的分形模型基于分形理论构建了颗粒填充高分子复合材料拉伸断口的分形模型，进而提出了分形维数计算公式。

The equivalent distributed capacitance compensation model is proposed, the two matching computing methods and formulas are given.

本文基于传输线理论和分布参数理论提出的等效分布电容补偿模型，对于较短的脉冲传输线和较小取样门负载具有很好的补偿作用。

The results of numerical computation show that pulse transmission line of multi-small-loading capacitance with proportional spacing can be well compensated by the equivalent distributed capacitance method.

图1为快脉冲传输线负载模型，根据传输线理论和分布参数理论，取样门最终可等效为加载到传输线的多个容值很小(0.3 pF)的电容负载。

According to the model, the reasons for electric nonlinearity for sensitivity is analyzed. This paper points out that the equivalent functions of nonlinear resistors in the circuit can be simulated by a voltage-controlled source and its expansion function, showing the behavior of electric nonlinearity for sensitivity.

依据此理论模型，对灵敏度电压非线性现象的成因进行了理论分析，并利用其中受电压控制的电压源及其扩展功能来模拟非线性扩散电阻在电路的等价作用，进而显示出压力传感器灵敏度电压非线性的成因。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。