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It introduced an prototype of cluster implemented by means of NAT and some arithmetics and models implemented by auther.

同时也对集群系统的概念，分类，和负载均衡机制做了简单介绍。

By means of simulation, the authors research the over-voltage level at AC and DC sides of converter station as well as arrestor operation condition caused by last breaker trip occurred in inverter station of UHVDC power transmission project from Yunnan to Guangdong; analyze and reveal the interrelations among over-voltage level, various operation conditions and different action delay of DC protections and propose the requirement to the time of protection coordination to ensure secure and reliable operation of equipments for the project.

文章对云广特高压直流系统逆变站最后断路器跳闸引起的换流站交直流侧过电压水平以及避雷器工况进行仿真研究，分析揭示不同运行工况、不同直流保护动作延时与过电压水平的相互关系，提出对保护配合时间的要求，以确保系统设备能安全可靠运行。

They reproduce asexually by means of zosspores or nonmotile spores and sexually by fusion of similar-looking gametes.

通过游动孢子或不能运动的孢子进行无性繁殖，通过相似的配子之间的融合进行有性繁殖。

By analyzing the distribution of the zeros to the transcendental characteristic equation associated with the trivial.solution,we obtain some- sufficient conditions on the stability and instability of the trivial solution.These results are generalized to n-unit neural networks by means of space decomposition in this Chapter.

在第二章中，我们讨论了不带自反馈与带自反馈的3元环状神经网络系统平凡解所对应超越特征方程的根的分布情况，确定了系统平凡解稳定与不稳定的充分条件，并利用空间分解的方法把相应的结果推广到n元环状神经网络系统。

By utilizing the auxiliary ordinary differential equation and its solutions, the first kind and second kind of KdV equation with variable coefficients were investigated by means of the extended tanh-function method, and abundant new exact solitary wave solutions were obtained under certain conditions.

利用该方程及其解，采用改进的tanh函数展开法研究了第1类和第2类变系数KdV方程，获得了在一定条件下的若干新精确孤波解。

There is at least one alternative axiomatization of probability theory by means of expectations on C-star algebras of random variables . In this case the method goes by the name of Gelfand-Naimark-Segal construction.

这是类似于两种方法来衡量和一体化，在这里，可以选择建造措施的规定和界定积分第一后，或构建积分第一，并确定一套措施，积分特性的功能。

This paper,by means of the unified model of vehicle-track systems,performs a simulating calculation of the railway track and vehicle,caused by track stiffness change.On the basis of simulation calculation,this paper tries to analyze the influence of track stiffness change on axle box acceleration with wavelet and power spectrum density.

据此运用车辆-轨道垂向系统统一模型对不同轨道刚度情况下引起的车辆和轨道响应进行了仿真计算，并对计算结果进行小波分析和功率谱处理，主要分析了钢轨、轨下垫层、道床刚度的变化对客车轴箱加速度的影响，同时对用客车轴箱加速度的变化反推道床的刚度状态进行了探索。

In order for a computer to communicate directly with the Distributed Control System, this paper explains the structure of the INFI 90 type DCS made by the Baily Control Company in America in detail. By means of analyzing its inner agreement on communication, an interface between the INFI 90 type DCS and the computer is designed, which includes the software and hardware.

为了实现微机直接与集散控制系统间通信，详细分析了美国贝利控制公司研制的INFI－90集散控制系统的结构组成，通过剖析该系统的内部通信协议约定，设计了微机与INFI－90集散系统通信接口，它包括硬件和软件两部分，其中软件由Borland C＋＋语言编程实现。

Aiming at the fact that the direct on-line instrument measuring the Baume degree of black liquor is very expensive,by means of soft measuring technique,an indirect way to figure out Baume degree is proposed by detecting derivative pressure and temperature of the black liquor on-line.

针对黑液波美度直接在线检测仪表价格昂贵的现状，采用软测量技术，通过在线检测差压和温度来间接换算出波美度。

Correlation of drillability anisotropy index of the roller cone bit and PDC bit, the difference between drillability of the roller cone bit in perpendicular and horizontal directions of the bedding plane with the P-wave velocity anisotropy coefficient are studied respectively by means of mathematical statistics. A mathematical model is established for predicting drillability anisotropy index by using P-wave velocity anisotropy coefficient.

用数理统计方法研究分析了牙轮钻头岩石可钻性各向异性指数、牙轮钻头垂直于和平行于地层层面方向岩石可钻性差值和PDC钻头岩石可钻性各向异性指数与纵波波速各向异性系数的相关关系，建立了用纵波波速各向异性系数评价地层可钻性各向异性的模型。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。