结构工程

The second is that meshcan be fine as required for we have solved the conventional problem that the shell'smesh must be limited in notch.Moreover,the mesh size's significance to the resultsis displayed by calculation and compare of models with different mesh sizes.Besides,we have simulated the cloud-shaped field distribution of moving FAE Devices with adynamic program.The results can provide the elementary basis for structure designadapted to new launching conditions.

二是突破了传统的壳体网格划分只能沿刻槽的限制，使网格可以细化，并通过不同网格尺寸的模型计算与比较，显示了网格划分对结果的影响程度；此外，使用自行编制的动力学程序，对运动FAE装置云雾场分布规律做了简化的数值模拟，为工程部门提供了在新的发射条件下改进弹体结构设计的初步依据。

Although the method have been widely applied in practical engineering. However along with damage accumulating and increase of aging structures, new signal analysis and interpretation algorithm need to be developed in order to accurately evaluate damage.

虽然该方法已在实际工程损伤检测方面得到了较广泛的应用，但是随着损伤的积累以及老化结构的增加，为了更加准确的对损伤进行定位和定量，需要发展新的信号处理方法提取对损伤敏感的特征因子。

This thesis discusses mainly the hardware design and development of a simulator for airborn phase array radar. The long period of the simulator is implemented by SDRAM MODULES used in Personal Computer, the broadband is implemented by D/A with internal double-data-channel switching architecture, and the control is implemented by a single CPLD.

本文主要探讨了一种机载相控阵雷达回波模拟器的硬件设计和工程实现，采用了PC机内存常用的超大容量高速缓存SDRAM MODULES来实现输出信号的长周期，采用内部具有双路数据分时切换结构的D/A实现输出信号的宽带，采用一片CPLD完成整个系统的时序逻辑控制。

Linear Algebra is mainly a subject which studies the linear structure of finite dimensional linear space and its linear transformation while linear concept is in itself from the old Euclid Geometry. The concept of "Linear Space" is a kind of algebraic abstract. In many fields of modern engineering project and technology, because of the influence of computer and graph showing, the algebraic disposal of geometric questions, the visual disposal of algebraic questions, algebra and geometry are tightly combined.

线性代数主要是研究有限维线性空间及其线性变换这一代数结构的学科，而线性概念究其根源则是来自古老的Euclid几何，线性空间概念是几何空间的一种代数抽象，在现代工程技术的许多领域里，由于计算机及图形显示的强大威力，几何问题的代数化处理，代数问题的可视化处理，把代数与几何更加紧密地结合在一起。

All-metal structure and precision engineering design reduces the paperboard and the possibility of failure.

全金属结构及精准的工程设计减少了卡纸及故障发生的可能。

UENMIS is developed on the basis of the alterability of system, the software engineering theory and the current technology of NMIS system development. It is designed by adopting the method of structural designed, structuring and modularization.

UENMIS系统设计和开发从系统的变更性入手，以软件工程理论和现有的MIS系统开发技术为指导，采用SD方法设计，层次结构法和模块法相结合的开发方法。

On the basis of analysis of existing problems in application of common comprehensive optimization models, the characteristics of optimization are combined with the principle of Artificial Neural Network organically. The ANN analysis situs structure is established and the learning algorism for the ANN is designed. The methods of generating training samples and alternative optimization are put forward.

在分析水利水电工程常用综合优选模型应用中存在问题的基础上，将综合优选问题的特点和人工神经网络原理有机结合，建立了方案综合优选的人工神经网络拓扑结构；设计了相应的网络学习算法；提出了生成训练样本和方案优选方法。

Pre-stress method is widely used in engineering structures in which anchorage plays a very important role.

预应力方法已经广泛应用于工程结构中，其中锚具有着至关重要的作用。

However, in the real engineering structures, some problems such as large displacement, large angle of rotation and large strain are shown on.

然而在实际工程结构中，往往存在着大位移、大转角或大应变等问题。

The present criterion of structure design mainly adopts the methods of approximate probability limit state design, but adopts the familiar multiply coefficients practical expression in engineering domain formally.

我国现行结构设计规范主要采用的是近似概率极限状态设计方法，形式上则采用了工程领域熟悉的多系数实用表达式。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。