查询词典 optimum system

Network situation awareness is a kind of new technology in network security system,which syncretize the information of firewall,anti-virus software,Intrusion Detecting System and security audit system,and evaluate the currently status of whole network.

网络安全态势感知是实现网络安全监测和预警的一种新技术，融合防火墙、防病毒软件、入侵监测系统、安全审计系统等安全措施的数据信息，对整个网络的当前状况进行评估，对未来的变化趋势进行预测。

The accounting theory system is a logic strict system info, it is an artificial system.

会计理论体系是一个逻辑严密的理论体系，它是一个人造系统。

In the absolute coordinate method, the position and orientation of every rigid body in the system are represented by the absolute coordinates with respect to the reference base of the system, the array of absolute coordinates of the system consists of the absolute coordinates of all rigid bodies.

在绝对坐标法中，每个刚体的位形坐标相对于系统的参考基定义，系统的绝对位形坐标列阵由系统中所有刚体的绝对位形坐标构成。

Therefore,it is necessary for us to conduct a series of principle analysis on different sections of the station such as the fuel system,lube system and cooling system of the diesel engine for generators,and the shaft generator as well as the main switchboard etc. It is also important to carry out at meantime a number of reliability tests and analyze the test results so as to assure all the units of the station will run smoothly.

因此，我们通过对船舶电站中柴油机的供油系统、润滑系统、冷却系统、轴带发电机、主配电板等各个环节从原理上进行分析，并进行必要的可靠性试验，对试验数据进行分析，确保船舶电站各个环节的运行良好。

A bulk power system or a composite generation and transmission system is such a power system which consists of generators, transformers, buses, circuit-breaker, protective-relaying.

组合系统涉及的设备种类较多，结构及运行方式复杂，故障模式往往是重叠的或相关的，其可靠性计算是当前电力系统可靠性研究的前沿领域。

according to the users′ actually demand for uninterruptible power supply for loads,the internal structure of digital generator is analysed and the reason for its uninterruptible function can′t be achieved.a design of the uninterrupted power supply system which transformed from the digital generator is proposed.the system uses the inverter of generators,ac through inverter for loads,at the same time,charges the battery as ac is normal.inverter the battery dc converters to ac for load,meanwhile,starting generator,when power failure.the system applies uninterruptible power for load,whether the ac is normal or abnormal,and design voltage and frequency stabilization,output zero-interrupted,battery charging and discharging management.without requiring purchase an uninterruptible power supply separately,this design can avoid duplication of investment and wasting of resources.

快速安全提高汽轮发电机转子检修质量。。。摘要：针对用户对负载供电不间断的实际需求，分析了数码发电机的内部结构及其不能实现供电的不间断性能的原因，提出一种由数码发电机改造组成的交流不间断供电系统的设计方法。该设计利用发电机内部的逆变器，在市电正常时，由市电经过逆变器给负载供电，同时给蓄电池充电；在市电断电时，一边启动发电机，一边由蓄电池的直流电通过逆变器转换成交流电供负载使用，实现无论市电正常还是异常，系统对负载提供不间断电源。设计对市电进行稳压、稳频、输出零切换、蓄电池的充放电管理等新功能。此设计无需单独购买不间断电源，避免重复投资和资源浪费。

Use grid technology, people could found a super system of numeration after connecting with server, memory system and internet, respectively. This super system provides high-quality service about computing and information. However, it is a complex undertaking to manage and schedule resource in the grid.

利用网格技术，人们可以将原本毫无关系的服务器、存储系统与网络联合在一起，组成一个超级计算系统，为用户提供高质量的计算与信息服务，但是，在网格环境中进行资源管理和调度是个非常复杂的问题。

To overcome the difficulties and the draw backs in modeling dynamic systems by traditional methods, a hybrid evolutionary modeling algorithm was proposed to model the Dynamic system with a system of ordinary differential equations whose main idea was to embed string coded idea and evolution algorithm optimize system.

针对传统方法解决动态系统微分方程建模问题所遇到的困难和存在的不足，设计将方程进行串结构编码并用进化方法进行演化建模的算法，以串形结构表示结构，用进化算法优化结构和参数，成功地实现了动态系统的常微分方程组建模过程的自动化。

So called reservoir is physical or mathematical; for a physical system, the mathematical model is a system of partial differential equations with related initial and boundary value conditions, it can describe important physical process occurring in the system, for example, the process occurring in reservoir, which mainly concludes flow of fluids and transportation of mass, gravity、 viscosity、compressibility have effect to it; differential equations describing this process are obtained by combining Darcy law of every phase and its mass equilibrium in differential form.

这种模型是物理的或数学的；一个物理系统的数学模型，是偏微分方程组和适当的一组初、边值条件的总体，它能够描述在系统中发生的重要的物理过程，比如在油藏中发生的过程，主要是流体的流动和质量的转移，重力、粘滞力、压缩性等在流体流动过程中都是起作用的；描述这个过程的微分方程是由将各相达西定律和各该相的微分形式的物质守恒相结合而得到的。

In the method of numerical analysis, the spatial part of equation system in strong conservation form is first discretized by conventional central finite-difference approximation and then the system of partial differential equations becomes a system of ordinary difference equations.

本文所建数值方法的基本空间离散格式是中心差分，并用源于Jameson的标量耗散模型抑制数值波动；采用经典四阶龙格—库塔法积分经过空间离散后得到的常微分方程组当残差足够小时的解为稳态解。

We should remember the three principe parts of these irregular verbs by heart .

我们应当用心记住这些不规则动词的三种形式。

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