间断的

The thesis is organized as follows:In Chapter 1,a new partial differential equation model for Spontaneous Potential log in heterogeneous formations is introduced.At the same time,the existence and uniqueness of weak solution to the problem are proved,and the problem of resistance identification in SP log is studied.Furthermore,a jump condition capturing finite difference scheme is proposed and applied to solve such elliptic interface problems.The effects of various factors on SP response,which include objective layers resistivity,bed thickness,bore-hole diameter,invasion and water-flooded zones and so on,are investigated quantitatively by the proposed method, and satisfactory results are obtained.

具体安排如下：第一章首先建立复杂地层中自然电位测井的偏微分方程数学模型，证明了该边值问题弱解的存在唯一性，在此基础上研究了自然电位测井电阻率识别问题：然后发展了用于求解椭圆交界面问题的间断捕捉有限差分方法，利用该方法定量分析了目的层电阻率、地层厚度、井径、侵入带和水淹层等因素对自然电位测井响应的影响，取得了满意的结果。

With the development of network and Community antenna television, and the popularization of Subscription Television, it is becoming so important to provide Uninterruptable Power Supply for them,and we need more and more wire network special power supply.

随着我国网络通信、有线电视的发展及收费电视的普遍，保证这些设备的不间断供电就显得意义重大，所需的有线网络专用电源日益增多。

Based on geological mapping and field observations, we conclude that there occurs a sedimentary interruption between the Middle and Upper Permian in the northern Qinghai-Tibet Plateau, which is represented by disconformity and angular unconformity.

通过对1999年以来在青藏高原北部空白区开展的1/25万区域地质调查成果等资料的分析，结合大量的野外观察，发现中、晚二叠世之间普遍存在着沉积间断，表现为地层之间的不整合或假整合以及晚二叠世地层的大量缺失。

In order to meet the required simulation precision and meet the real-time simulation in ballistic simulation calculation,this paper analyzes the selection method of the simulation step,and then introduces variable step integration methods in Runge-Kutta to Adams and educes Adams variable step integral formulas,and then put forwards a method by seeking zero of condition function in discontinuous nonlinear system of the ballistic simulation.

在弹道仿真计算中，为了既达到要求的仿真精度又能满足实时仿真，分析了仿真步长的选择方法，然后在龙格－库塔转阿当姆斯法中引入变步长积分方法，推导了阿当姆斯变步长积分公式，同时对弹道仿真中的间断非线性系统提出条件函数求零的方法来解算弹道。

It is shown in this research that:① The acoustic emission phenomena of rock discontinuously occur under the effect of temperature.

试验研究表明：①随着温度升高，岩石的声发射现象是间断发生的；②花岗岩存在一个开始发生热破裂的门槛值温度，其值为120 ℃左右；③试验温度范围内花岗岩热破裂的声发射现象可分为5个阶段，即岩石原生裂隙整合阶段、热破裂前声发射静默阶段、热破裂声发射阶段、大规模热破裂后声发射静默阶段、二次热破裂开始阶段。

In relationship with vegetations of Yunnan, the genera of Tropical Asia, Old world tropics and Tropical Asia to Australia distributions occur mainly in the tropical forests in southern Yunnan; the genera of Pantropical and Tropical Asia to Tropical Africa distributions occur mainly in the vegetations on dry and hot valleys; the genera of North temperate distribution occur mainly in forests on mountains with a cold and wet climate, while the genera of East Asian, East Asian and North America disjunct, and Old world temperate distributions occur mainly in the vegetations of the area with a warm climate.

在与云南植被的关系上，热带亚洲分布属、旧世界热带分布属和热带亚洲至热带大洋洲分布属是云南热带森林的主要成分；全热带分布属和热带亚洲至热带非洲分布属是干热河谷植被的主要成分，北温带分布属主要出现在冷湿山地森林植被中，而东亚分布属、东亚和北美洲间断分布属及旧世界温带分布属与温凉气候地区的森林植被联系相对密切。

Many of such thoughts came from the forces of the dark that wished to manipulate her, which would incessantly douse her with pictures and visions of the demise of another.

许多这样的思想来自希望来操纵的黑暗力量，它们不间断地用其他人的死亡图片和幻像插入她的能量场。

The correct weak form of basic equations in elasticity is presented by means of dual space conception and basic theorem in functional analysis. The conditions on discontinuous surfaces of displacements or elasticity constants for continua are given.

因此从泛函分析的角度出发，基于共轭空间的概念和泛函分析的基本定理准确地给出了弹性力学基本方程的弱形式；给出了连续介质在位移或物理常数间断面上的条件。

And there has been some truth to that explanation beneath the surface of China's five-year plans and detailed industrial policies, there has always been intense competition between the state-owned groups which sometimes behave like private fiefdoms, duelling for ever-more territory.

这种解释有一定道理--在中国的五年计划和详尽产业政策的表象之下，国有集团之间的激烈竞争从未间断，它们的行为有时就像是封地领主，为争夺更多的地盘而展开决斗。

The ellipsoidal coordinates and the square root characteristics of the displacement jumps across the crack surface are cleverly used in the hypersingular integral equations for an arbitrary planar crack embedded into the infinite three dimensional homogeneous elastic solid.

对无限大三维均质弹性体中任意平片裂纹的超奇异积分方程，巧妙地引入椭球坐标系和利用裂纹表面位移间断具有平方根的特性，获得了受任意方向均布内压力作用下椭圆平片裂纹问题的超奇异积分方程的解析解。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。