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Based on the analysis of physics course of heat transfer, the mathematical model of single-phase flow in the rectangular narrow channel is proposed. And the boundary conditions are given to get the unique numerical result. The finite volume method is used to found the discrete scheme of equations. According to the flow of SIMPLER arithmetic, the computing program is developed and the correctness of program is validated.Then the program is used to solve the problem of flow and heat transfer in rectangular narrow channel.The stable two dimension velocity and temperature fields in rectangular narrow channel and plate fuel are obtained.

在明确窄缝流道及燃料板换热物理过程的基础上，建立了描述矩形窄缝内单相流动与换热问题的数学模型，并给出了合理的边值条件；然后利用有限容积法对方程进行离散，根据SIMPLER算法的流程编制了模型求解程序；在验证程序正确性的基础上，对矩形窄缝流动与换热问题进行了求解，得到了矩形窄缝流道和板状燃料元件内部温度场、速度场的二维分布。

It is more likely that if an object has some nonlegitimate values it will either cause the program to identify that something is wrong, or will mess up the program and will cause the program to crash.

它更有可能，如果一个对象有一些nonlegitimate值，将任一事业计画，以确定这东西是不对的，还是会乱了程序，并会导致程序崩溃。

It is more likely that if an object has some nonlegitimate values it will either cause the program to identify that something is wrong, or will mess up the program and will cause the program to crash.

它更有可能是这样，如果一个对象有一些非法定值，将导致程序或者识别某些东西是不对的，或者会乱了程序，并会导致程序崩溃。

Based on the original program, a program to simulate the working process of internal combustion engines was developed, and steady simulation was completed when the 4102BG diesel ran under normal cycle. The results was obtained and compared with the experimental data, so the program was proved to be feasible.

在原有程序的基础上，编制了对内燃机工作过程进行仿真的程序，利用该程序对4102柴油机进行了开式循环的稳态模拟计算，并将计算结果与实测数据进行了比较，验证了程序的正确性。

This paper briefly introduced the development phases of software dog, expatiated on the software dog's software and hardware principles, and analyzed the sameness and difference between software dog and encrypted information. Based on the particular introduction of the inner architecture of CY7C68013 chip which belongs to Cypress corporations EZ-USB FX2 series, the paper gave the hardware implementation of software dog, presented the program flow chart of software dog, and introduced the making process of both driving program and super application program.

简单介绍了软件加密狗的几个发展阶段，具体说明了加密狗的软、硬件原理，并分析了软件加密狗与信息加密的异同，详细介绍了Cypress公司EZ-USB FX2系列CY7C68013芯片的内部结构，并给出了基于此芯片的加密狗的硬件实现，给出加密狗内软件程序流程图，并简要介绍了驱动程序和高级应用程序的制作。

Part two : Analyzed the program of dynamic signal matching, expounded the pile wave analysis program by the method of characteristics, characteristic connection detruding, the problem of initial value or edge value, piles calculating model and pile-soil system, indicated the lack of the traditional high strain dynamic signal matching program.

第二部分：对实测曲线拟合法进行分析，阐述了弹性体细长杆中纵波传播的特征线解，特征关系的推导，初值与边值问题，桩的计算模型，桩侧土模型，桩尖土模型，指出传统拟合分析程序的参数不够全面的缺点。

Based on the experience of compiling the program, the paper discussed some topics which should been taken note of while compiling a plane member structure FEM program that took the geometric nonlinearity into account as well as the material nonlinearity. With this program, the paper analyzed the effect of the factors on the anti-bending capability of externally prestressed concrete beams and come into some useful conclusions. The factors included: the rate of ordinary steel bars, the initial prestress of the external tendons, the shape of the external tendons, the position and number of deviators and the number of segments.

结合编程实践，本文讨论了编写考虑几何非线性和材料非线性的平面杆系有限元程序应该注意的一些问题，并应用所编的程序，对体外预应力混凝土梁的抗弯性能进行了普通钢筋配筋率、体外索的初始张拉力、体外索的配筋形式、转向块的布置和节段的数目等五个影响因素的分析，得出了一些有益的结论。

In comparison with no screening program, the ICER for the vision screening program for preschool children aged 4-6, was found to be less than the threshold proposed from the World Health Organization and therefore vision screening program for preschool children aged 4-6 could be considered cost-effective.

本研究结果显示，若执行4-6岁弱视筛检计画，每多得到一单位品质校正人年所需要多花的成本均低於世界卫生组织所建议之标准阈值。本研究结果显示执行4-6岁学龄前儿童弱视筛检是具有成本效之策。

Taking the Heidenhain control system for Mikron NC machine tool as example, I-DEAS postposition processing includes INIT program section, START program section, and TERMINATE program section.

作者单位：（许昌烟草机械有限责任公司，河南许昌 461000）摘要：以Mikron数控机床的Heidenhain控制系统为例，I-DEAS后置处理由INIT、START、TERMINATE三个程序段组成。

Because of the off-phase motor running to recognize the harm caused by different fault in the implementation phase of the motor protection have had two different views: that the broken phase to the electrical damage caused by overheating point of view to the implementation of the motor overheating protection or inverse-time characteristics of overcurrent protection, thermal relays the resulting program, thermal resistance package with over-current fault protection program delay, and other programs; that the break caused by phase to the motor windings high-voltage breakdown back-EMF's view of Open-phase protection program to take instantaneous action, and some electronic-type protectors available.

由于对断相运行给电机造成的危害认识不同，因此在对电机实行断相保护时产生了两种不同的意见：认为断相给电机造成过热损坏的观点要对电机实行过热保护或过流反时限特性保护，由此产生了热继电器方案、热敏电阻方案、断相过流延时保护方案以及其他一些方案；认为断相给电机绕组造成高压反电势击穿的观点，对断相采取瞬时动作保护方案，于是一些电子式保护器问世。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。