原理

In order to improve the efficiency and quality of drawing hydraulic system principle diagram,a software of hydraulic system principle diagram's automatic protracting was developed with Delphi.

为了提高液压系统原理图的绘制效率和绘图质量，本文利用Delph i编程软件开发出液压系统原理图自动绘制软件。

This thesis is based on the design of hydraulic propelling which comes from the technology item of the method multitude objects optimizing design and being carried out in die-casting machine'exploitation ,and a software of hydraulic system principle diagram's automatic protracting is carried out by developer with Delphi. The efficiency and quality of drawing hydraulic system principle diagram is improved sharply. And the calculating of hydraulic system's pressure and flux is achieved.

课题以科研项目&多目标优化设计方法及其在压铸机产品开发中的应用&中的液压传动系统设计为依托，利用Delphi编程工具开发出液压系统原理图自动绘制软件，从而极大地提高液压系统原理图的绘制效率和绘图质量，并实现了液压系统管路压力与流量的求解和计算。

This thesis is based on the design of hydraulic propelling which comes from the technology item of the method multitude objects optimizing design and being carried out in die-casting machine"exploitation ,and a software of hydraulic system principle diagram"s automatic protracting is carried out by developer with Delphi. The efficiency and quality of drawing hydraulic system principle diagram is improved sharply. And the calculating of hydraulic systems pressure and flux is achieved.

课题以科研项目&多目标优化设计方法及其在压铸机产品开发中的应用&中的液压传动系统设计为依托，利用Delphi编程工具开发出液压系统原理图自动绘制软件，从而极大地提高液压系统原理图的绘制效率和绘图质量，并实现了液压系统管路压力与流量的求解和计算。

The basic theory of remote watching system for an unmanned substation is introduced. The necessity of image compaction in dada transmission, the theory of 2?dimension wavelet transform, and Mallat algorithm are also explained. Based on that, the method for reconstituting the site image with the original picture and the effective area,which is compacted by the wavelet transform and transmitted to dispatch center, is analyzed.

介绍了无人值守变电站遥视系统的基本组成原理，阐明了压缩传输图像的必要性，论述了二维小波变换的原理与Mallat算法，在此基础上，着重分析了利用二维小波变换压缩传递图像的有效区域并传至调度中心与底图重构出现场实况的方法。

This product is the principle temperature decrease which evaporates through the water, namely the water needs and cooling tower principle same which from the liquid state to the gaseous state the absorbed energy the principle refrigerates

该产品是通过水蒸发的原理降温，即水从液态到气态是需要吸收能量的原理来制冷的

The control system includes the 89C51single chip microprocessor and Circuits of restituting position,circuits of exportation and importation, Circuits of translation code, transmission and induction system of temperature, the interface of coefficient, circuits of showing, stashing equipment and circuits of interface.

介绍了电阻炉的工作原理及常规测温的方法；介绍了PC机在温度控制中对数据的采集、处理的相关知识；分析了系统的软、硬件结构及工作原理；基于单片机控制的电阻炉温度控制系统是一种智能型控制系统。

Twitters basic idea has proven so popular that others have copied its premise and added features.

Twitter的原理很普遍，许多人利用它的原理创造了其他类似的东西并增加新的特性。

The paper takes the steam turbine valve actutors and control systems as the object of study, and the fast valving of regulating valves in case of electrified wire netting failure plays an important role. The disadvantages of electro-hydraulic control systems for steam turbine available are discussed, and the principle of the new system and its design method are presented, experimental study and theoretical analysis results concerning the steam turbine electro-hydraulic control system based on the new combination principle are reported in this paper.

本文把汽轮机蒸汽阀门电液执行机构及控制系统作为主要的研究对象，尤其是针对于电网故障时，调节汽门快关控制问题进行了深入的研究，指出现有汽轮机电液控制系统存在的问题，在继承和总结前人研究的基础上，提出了汽轮机电液控制系统组成原理的新思想与系统设计的新方法，对基于这种新原理的汽轮机电液控制系统进行了系统的理论分析与试验研究。

In this paper, the teaching actuality of the communication theory course is analyzed and propose teaching feform on communication theory teaching philosophy, teaching contents、teaching methods and assessment mechanisms.

本文分析通信原理课程教学现状，提出了对通信原理课程教学观念、教学内容、教学方法和手段、考核方式等方面的改革措施。

And through the principle of effective stress constitutive model; pore water pressure, pore air pressure; and pore water and consolidation of the environment; three-part analysis and discussion that the principle of effective stress based on modern soil mechanics, faced with a large theoretical and practical test.

并通过对有效应力原理的本构模型；孔隙水压、孔隙气压；和孔隙水与固结环境；三个部分的分析、讨论，认为以有效应力原理为基础的现代土力学，面临具大的理论和实践的考验。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。