价值工程

Therefore, the study is significant both theoretically and practically. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. In this paper, the OpenGL virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the MMG mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. In the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the MMG module mathematical model and serial experimental result. After compiling the program, the calculation results are compared with the experimental data, the coherence between them validate the mathematical model.

在系统开发过程中，首先采用MMG分离式数学模型及相关的系列化试验结果，建立单桨单舵海洋运输船舶在静水中的船舶操纵运动方程，并编制计算程序，经与试验结果比较，证实了计算结果的正确性；为了解MMG数学模型中模型参数变化对操纵性指数的影响程度，作者在上述已有程序基础上，对有关模型参数进行偏移修正，探讨了相应参数变化后的操纵性指数，对船舶操纵性指数对模型参数的灵敏度进行了详细的分析与探讨，所得结论与工程实际相吻合，具有实际应用价值，并为进一步提高船舶操纵性预报的精度打下了基础；然后，在已有的船舶静水操纵运动模型基础上，考虑双桨双舵的影响，建立了内河双桨双舵船舶的操纵运动模型；最后，综合考虑风浪流作用力的影响，进行了船舶的操纵运动仿真计算。

The research status and the developments of closed type water mist fire extinguishing system are briefly introduced.

简述了细水雾灭火系统的研究现状和发展动态；介绍了闭式中压细水雾灭火系统的实施方案和工程应用价值。

The ecologicalcharacteristics of community structure, species diversity, its ecological effects on soil health,and eco-system functions of soil water holding capacities, water and soil conservation effectswere studied symmatically in Nverzhai watershed , which was the key experiment anddemonstration spot of the Yangtze River Proctction Fores.

针对长江中下游低山丘陵区土地退化现状和我国现阶段生态工程建设需求，以湘西北武陵山区女儿寨小流域为研究对象，研究了7种典型植被恢复模式的群落结构、生物量分配格局、物种多样性、土壤健康效应等生态学特征及水土保持、水源涵养等生态系统服务功能，具有重要的理论意义和应用价值。

Based on the formers' studies, the behavior and mechanism of the structure are systematically analyzed by the FEM and the elastic-plastic theory in order to meet the need in engineering, and some valuable conclusions are obtained, which can be taken as references in design and construction.

本文在前人研究的基础上，根据目前深基坑复合土钉支护的研究现状和工程实际的需要，采用有限元和理论分析方法对深基坑复合土钉支护进行了系统全面的分析和研究，得到了一些有益的成果，对复合土钉支护的设计与施工具有重要参考价值。

At last, the frequency spectrum analysis shows that the four-winged chaotic attractor has extremely wide frequency bandwidth compared with that of the Lorenz system and Chua circuit, which is important in practical applications in communication encryption etc.

最后，通过比较该四翼混沌吸引子的系统、Lorenz系统、Chua氏电路等混沌信号的频谱发现，四翼混沌吸引子的系统信号具有极宽的频谱带宽，该特性在通讯加密等工程应用中具有重要价值。

Uncle Sepp's rectifiers were full of praise for the greenhorns, their sense of 'mission, vision and strategy development, business plan definition, organisation and implementation of complex large-scale projects, value creation through operational improvements etc'.

布拉特叔叔的&工作组&者对这些&菜鸟&们赞誉有加，高度表扬他们的&使命意识、远见卓识以及发展战略，商业计划的指定，浩大工程的组织实施，通过运营改进以创造价值等&。

Uncle Sepp's rectifiers were full of praise for the greenhorns, their sense of 'mission, vision and strategy development, business plan definition, organisation and implementation of complex large-scale projects, value creation through operational improvements etc'.

布拉特叔叔的&工作组&者对这些&绿牛角&们赞誉有加，高度表扬他们的&使命意识、远见卓识以及发展战略，商业计划的指定，浩大工程的组织实施，通过运营改进以创造价值等&。

Simple design formula on the ultimate compressive strength of gusset plate connections to slotted tubes is presented basing on the results of finite-element study. It has bigness significance to perfect design formula of gusset plate connections to

本文根据有限元分析的结果，提出管板节点计算的简化公式，为管板节点极限承载力设计计算公式的进一步完善提供了有意义的参考，同时对实际工程也有一定的参考价值。

The design and research of the paper has certain reference value to shell-and-tube heat exchanger especially U-tube heat exchanger engineering design.

本文的设计与研究对于管壳式换热器尤其是U形管式换热器的工程设计具有一定的参考价值。

Then a series of practical engineering problems, such as the image shaping principle of infrared laser device, the utilizing of infrared laser device in power transformer fault diagnosis, the working procedure in real field operation, the acquiring of heat spectrum from fault transformer in field test, the analyzing of heat image spectrum etc, were considered and overcame.

由于红外诊断具有非接触性和诊断运行中设备的特点，其诊断结果受到外界环境和判别方法的影响，因此提高变压器红外诊断技术的准确性及提高其应用效果具有重要影响，对变压器红外诊断应用技术进行研究具有重要的工程实用价值。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。