指数函数

In order to illustrate the exponential function and the homogeneous balance method effectiveness, were cited in this (2 +1)-dimensional Burgers equation and the promotion of the Burgers-Kdv equation for example, comparing the pros and cons of the two methods.

为了说明指数函数法和齐次平衡法的有效性，在此分别引用(2+1)维推广的 Burgers 方程和Burgers-Kdv方程举例说明，对比此两种方法的利与弊。

According to the creep characteristic of concrete,the exponential function was selected as base function,which could construct the prevalent Dirichlet series so as to fit creep coefficient .

根据砼的徐变特性，选用指数函数作为基函数，构造了最普遍的Dirichlet级数形式来拟合徐变系数。

When the soil surface is fully mulched with plastic film, salt concentration is a exponential function of depths. With different film hole ratios and wetting fronts depths, the salt concentrations can be expressed as a discontinuous function of the depth.

对不同开孔率来说，全覆膜蒸发的浓度可用深度的指数形式表达，不同入渗锋和开孔率条件下浓度可表示为位置的分段指数函数。

These data indicate that the tempering hardness change show as two obviously different stages, i.e. fast decrease and slow decrease, during austempering for quenched and tempered steels. This change rule can be described with a double exponential distribution functional relationship: H=aesuperscript -b(Tt+cesuperscript -d

这些数据表明，调质钢等温回火时的硬度下降表现为快速下降和缓慢下降两个明显不同的阶段，这一变化规律可以用双指数函数H=ae上标-b

The former two accorded with exponential function equation,and the latter power function equation.

前两者以指数函数类型建立的回归方程最好，后者以幂函数类型建立的回归方程最好。

An equation involving exponential functions of a variable.

关于变量指数函数的方程。

The optimum models were obtained by non-linear fitting to describe the kinetic processes of adsorption of Cd on four types of soils in Northeast, China. According to the results, exponential equation and exponential function equation were more appropriate to fit the kinetic process than other equations.

通过非线性拟合的方法获取了适宜描述Cd在东北地区土壤上吸附动力学特征的最优化模型，综合来看，指数方程和指数函数方程比较适宜于描4种土壤对Cd的吸附动力学特征。

Considering that rock's permeability is exponential function along with formation pressure and starting from nonDarcy percolation theory of gas at high speed, this paper derives a new pseudo pressure binominal exponential deliverability equation and its solution method.

在考虑岩石渗透率随地层压力呈指数函数变化的基础上，从气体的高速非达西渗流理论出发，推导出新的拟压力二项式产能方程及其求解方法。

The results of dynamic absorption in the organs after incorporation of 3H-TdR showed that 3H-TdR in the peripheral blood was swiftly distributed to other organs and to their peaks in Id, and was scavenged from them quickly, the formulae of incorporation pattern were described as exponential equation.

3H-TdR内污染组织器官生物动力学的研究显示，进入血液的~3H-TdR可迅速分布于各组织器官，1天内吸收达高峰，然后迅速排除，拟合的滞留曲线回归方程为指数函数方程。

In essence, all functions studied in elementary analysis are either variations of the exponential function or they are

在初等分析中，从本质上来说，要么是指数函数的变种，要么是

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。