基本条件

ChapterⅡ:Analyzing the general situation of crimes in the field of EC,including its definition,classification,present state,tendency,generalcharacteristic,method of crimes,and reasons and conditions result in them.

第二章分析了电子商务领域犯罪的基本情况，包括其含义、分类、发展态势、基本特征、常用的犯罪方法，以及这类犯罪产生的原因和条件。

The article firstly introduces the fundamental theory of the enterprise group and financial control, Then analysis the problems of the enterprise group based on information asymmetry using information economics theory, agency theory and game theory.

本文先总括性介绍企业集团基本理论和企业集团财务控制基本理论，然后引入信息经济学的理论、委托代理理论、博弈论，分析信息不对称条件下企业集团财务控制中存在的问题。

Once more, on the text this paper studies and discusses the fundamental, including network accounting connotation, similarities and differences of network accounting and traditional manual accounting and CAIS, technology criteria of network and some advantage; influencing, on trad- itional accounting theory(mainly focusing on, general principle etc.), ob- taining and making use of information; specialty, risk and precautionary, and so on. it puts forward the consult and sug- gestion.

再次，在主体部分围绕网络会计的基本原理(包括网络会计的内涵、网络会计与传统手工会计和会计电算化的异同、网络会计系统的技术标准、及其具有的优点)，网络会计对传统会计理论的影响(集中在会计的核算前提条件、核算一般原则等方面)，网络会计下会计信息的获取与使用，网络会计具有的特殊性及由此产生的风险和防范措施等若干方面进行详细的研究和探讨并阐述个人的基本观点，从而为网络会计在我国的健康顺利发展及为经济建设服务提供有益的参考和建议。

A mathemetical model of magnetic field in electromagnetic separation of inclusions from molten aluminum under rectangle coil and 50Hz current is presented according to the magnetic vector potential integral equation and the basic theory of magnetohydrodynamics. The magnetic field distribution in the gap of coils is simulated by the model and the actual magnetic field distribution also is measured. The experimental results show that the magnetic field distribution in the gap of coils is uniform and is consistemt with the model simulation. The magnetic field designed accord the simulated result is proved suitable in the practice.

摘 要：根据电磁流体力学的基本理论，利用矢量磁位积分，建立了在采用矩形电磁线圈和工频电源的条件下电磁分离铝熔体中夹杂的电磁场数学模型，模拟计算了电磁感应线圈气隙中的磁场分布状态，同时对制做的感应线圈的实际磁场进行了测量模拟计算磁场的分布状态与实际磁场的测量结果基本一致，都表明在电磁感应线圈气隙中磁场分布均匀，可以进行分离铝熔体中的非金属夹杂。

In this paper, the basic options as a starting point, the approach of assuming the price of the underlying assets comply with the conditions of normal distribution, we discuss the options buyers were portfolio probability and loss function benefits the mathematical expectation of a meaningful result is derived.

本文以基本期权为起点，在假定基本资产期日的价格遵从正态分布的条件下，讨论期权组合的购买者获益的概率及其损益函数的数学期望，并导出一个有意义的结果

Using the basic dynamic equation of rotary non-inertial system, the basic law of object s movement in the reference system of rotating about fixed axis , and the conditions of momentum conservation and conservation of momentum moment of objects are educed.

利用旋转非惯性系中的基本动力学方程，导出在定轴旋转参照系中物体运动的基本规律，以及物体动量守恒和动量矩守恒的条件。

In this paper,the existence of the nontrivial solution to a class of quasi-linear elliptic problem is investigated based on the Hardy inequality and the Mountain Pass Geometry.

使用Hardy不等式和山路几何研究了一类拟线性椭圆问题非平凡解的存在性。由于难以得到所讨论的问题的基本解，因此研究中对基本解进行了估计，并证明了c条件

It's shown that the measured peak of the tube voltage is close to the set value during the exposure.

认为由于X线机在曝光过程管电压峰值与设定值基本相同，因此各物质在同一曝光条件下的平均数衰减系数基本不变。

Several elementary properties of restricted Lie color algebra are collated.

又分别讨论了φ_p-基本和φ-基本的限制李color代数，并给出了它们的几个等价条件。

Firstly, based on the force acting on a single-particle, establish a discriminant formula of the sand threshold, and prove that the sand threshold belongs to the cusp catastrophe. Then establish the basic equation of the cusp catastrophe using coordinate transformation and catastrophe theory. Finally, while particle Reynold number and equivalend diameter are the state variables and Shields parameter is the control variables, we can obtain the model of cusp catastrophe of sand threshold, putting those variables into the basic equations of the cusp catastrophe. The model is derived from the mathematics, which has a certain mathematical theory foundation.

首先从单颗沙粒受力分析出发，建立沙床沙粒起动条件判别公式，进而证明了风沙起动属于尖点型突变；然后通过坐标变换和突变理论建立了尖点突变的基本方程；最后本文选择颗粒雷诺数和等效粒径作为控制变量，希尔兹参数作为状态变量，并把它们代入尖点突变的基本方程，经过拓扑变换得到风沙起动的尖点突变模型，并与前人的公式及实验数据进行比较。

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。