积分的

On the one hand, Lagrange hit upon the new idea to redefine the complete integral when he was inspired by his study on the first-order partial differential equation with the method of variation of constants.

在分析、比较欧拉和拉格朗日完全积分定义的基础上，依据原始文献，重点考究了拉格朗日重新定义偏微分方程完全积分的原因和动机。

Finally, the application example is introduced the basic concept of integral n heavy weight and simply introduces n application in the life of the integral whole.

最后，介绍了n重积分的基本概念并且简单介绍了n重积分在生活中的应用实例。

In this paper, find Euler's formula using double integral , power series convergence and uniform convergence in the convergence region.

本文利用二重积分公式，幂级数在收敛区间内的收敛性质、一致收敛性质及可逐项积分的性质来证明Euler公式

According to the indefinite integration by parts

根据不定积分的分部积分法，有

JuJu 积分+2 Happy Birthday!

澳洲的云积分+4生日快乐！

After constrcting the perfective space , prove that this space is just the space of lebesgue integratiable function , thus explain that lebesgue integral is the form of the perfective riemann integral

在构造了完备化空间之后，证明了该空间就是勒贝格可积函数空间，从而说明了黎曼积分的完备化形式是勒贝格积分。

Based on the Poisson bracket and the discriminant of integral of motion,we prove the problem that the moment of momentum is the integral of motion when the mass point is affected by central force.

运用泊松括号，依据运动积分判别式，证明了质点受有心力作用时，其动量矩是运动积分的问题。

Divergence Theorem: is a vector theorem that allows a surface integral of the normal component of the vector to be transfomed into a volume integral of the divergence of a vector, or vice versa.

散度定理：将矢量表面积分转换为体积积分的散度形式。

Additionally,the calculation methods of the parameters (two phase pseudopressure integral and two phase non-Daccy flow factor D) involved in the equation and the calculating example are discussed briefly.

此外，还讨论了该方程参数(两相拟压力积分和两相非达西流系数积分)的计算方法及算例。

The amplitudes of forward and backward travelling wave caused by a fault were integrated respectively within a short time after fault. The fault direction was determined by the ratio of the integral values.

该方案基于故障发生后一段时间内，正向行波幅值积分与反向行波幅值积分的比值来确定故障方向。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。