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The subdomain precise integration with multiple inner points can improve the precision. This paper gives alternating direction precise integration method for twodimensional diffusion equation, and discusses the parallel algorithm of this method.

给出了交替方向的二维扩散方程的精细积分算法，将一个时间步积分分为两个方向，使大规模矩阵的计算转化为一些小矩阵的计算，减小了每一步求解的计算量。

Based on wave propagation feature, this paper analyses 3D seismic migration algorithms such as alternating direction implicit method, LU decomposition method, and inverse operator approach method. The result shows that the alternating direction implicit method is fast but causes distortion in wave field extrapolation and affects image accuracy; however LU decomposition and inverse operator approach methods are fast while holding circular symmetry of wave field, and are promising in oilfield exploration and development.

在波的传播特征分析基础上，对交替方向隐式法、LU分解法、逆算子逼近法等三维地震偏移算法进行了分析研究，结果表明，交替方向隐式法虽然快捷但是在波场外推中明显产生畸变并影响成像的准确性，而LU分解和逆算子逼近法是保持波场圆对称特征前提下的快速算法，在油田勘探开发中具有较好的应用前景。

State Key Laboratory of Millimeter Waves, Southeast University , Nanjing 210096, ChinaIn this paper, it is proven that the divergence relationship of electric-field and magnetic-field is non-zero even in charge-free regions, when the electric-field and magnetic-field are calculated with Alternating Direction Implicit Finite-Difference Time-Domain method, and the concrete expression of the divergence relationship is derived.

摘要该文证明了即使在无源区域，交替方向隐式时域有限差分法所给出的电磁场量不满足零散度关系，同时推导出了该散度关系的具体表达式。

In this paper, we mainly study the alternating group A_4 actions on spin 4-manifolds. First we discuss the special action of A_4 on K3 surfaces of Fermat type, we compute the fixed points set of this action and some invariants of the group action, also we get some topological properties. Then we study the A_4 actions on general K3 surfaces and obtain some similar results.

本文主要是以交错群A_4在K3曲面上的作用为研究对象，从Fermat型K3曲面上的特殊的A_4作用出发，得到了Fermat型K3曲面上A_4作用的不动点，利用不动点集计算了群作用的一些不变量并得到了相关的拓扑性质，在此基础上进一步把其中的一些结果推广到一般情形下的同伦K3曲面上。

Based on short circuit fault reasons causing the outage of roadway lighting, this paper presents four maintenance methods, including separate detecting, series fuse detecting, group lighting alternating supply detecting and applying projection lamp detecting, and via the aspects of economics and man-power usage to obtain the optimal one.

因此，本文针对夜间路灯线路因发生短路故障而未能点亮的情况，提出二分侦测法、串联保险丝侦测法、隔盏灯供电侦测法以及使用投光灯侦测法等四种方法，并透过经济和人力资源(含现场安装或改修及事故处理)等观点加以比较分析。

A variational alternating method which is suitable for studying three dimensional finite cracked solid is given by this paper.

本文给出适用于三维含裂纹有限大体的变分交替方法。此方法的奇次步骤系以文献[10]为基础。

So it is necessary to process the solid-color medical image. This paper discusses how to process the color problem of medical image by using alternating reflection method, and the conversion theory and method is also discussed in details.

医学图像的彩色处理方法很多，本文讨论借助于计算机用映射变换法来处理医学图像的色彩问题─伪彩色处理，并详细讨论了转换原理及转换方法。

But under the real working conditions where exist alternating load sequence, no paper mentions whether can LAL still increase fatigue strength so far.

但在实际使用载荷忽高忽低交替作用的条件下，低幅载荷是否也能增大疲劳强度，迄今尚未有文献论述。

In this paper, to development tendency of electrical source of alternating stable voltage, working principle of switch mutual complementary alternating regulator are proposed and analyzed .

本文针对国内交流稳压电源的发展趋势，提出并分析了开关互补式交流稳压器的工作原理。

First, this paper briefly presented the construction of the software and hardware system of the ATE8000- 1 integrated test stand, and the monitoring circuit designs of alternating current power supply used voltage for this test stand.

文中首先简要介绍了ATE8000-1综合测试台系统的软硬件结构和总体方案，设计出了该测试台交流电源输出电压的监控电路。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。