数学基础

Based on this assumption the author derives the mathematical model of which intercepting pitch-down target attacking our ship and friend ship, using this model,quickly and correctly computes the target curved motion parameters, pitch-down linearmotion parameters and projectile firing data.

在这个假设的基础上，推导出拦截俯冲目标攻击我舰和友舰的数学模型。较准确的快速计算出目标曲线运动参数。俯冲直线运动参数和弹丸发射诸元。

The second, according to mapping function of blank and product sections, and to many interpolating functions along model-cavity vertical surface, paper has built mathematics model, fluid surface function of special-shaped product plastic deformation and velocity field, gotten basis theory for metal forming prediction, for example empty drawing metal pipe thickness homogeneity and special-shaped product fluid regular, die parameter optimization and integration research of die CAD/CAM.

根据拔制坯料和制品截面映射函数和模腔纵向多种插值函数（直线型、凸型、凹型和三次多项式型），建立了相似异型材、圆形坯料——异型材和异型材——异型材三维金属拔制塑性成形的数学模型和异型材塑性成形的流面方程及流动场方程，为预报金属成形规律（如：空拔管壁均化、异型材流动规律），模腔参数优化及其CAD／CAM一体化研究提供了理论基础。

To shorten the design period of control system of a satellite attitude control flywheel,and to verify the feasibility and effectiveness of design schemes,a control model based on a mathematics model for flywheels was established combined with acceleration techniques,reversal connection braking control and commutation control for the control system of flywheels.

为了缩短姿控飞轮控制系统的设计周期和快速验证设计方案的可行性及有效性，在分析姿控飞轮电机本体数学模型的基础上，结合该姿控飞轮控制系统所采用的加速控制、制动控制、换相控制，建立了姿控飞轮控制系统模型。

Chapter one involves a survey of the fundamental knowledge and achievement obtained by foregoers on the subjects for the purpose of the later parts in this dissertation, including the introduction of the history and development of mathematics mechanization, brief review of the history and status in quo of the fractional calculus and soliton theory.

第一章介绍了论文的基础知识以及前人工作的成果：包括介绍数学机械化的思想与应用的情况；回顾分数微积分的历史和所应用的领域；简单介绍孤立子研究的历史、发展与成果。

In this paper,based on consulation to tens of bridge experts and a vast amount of investigation and study,expert knowledge on bridge assessment is obtained. A new concept-damage value is put forward to measure bridge damage,and fuzzy theory is used to create comprehensive fuzzy system to assess bridge service property. The set up of an expert system for bridge assessment is tried as well.

本文在对数10位桥梁专家的咨询以及大量的调查研究基础之上，收集整理了桥梁评估专家知识，提出用损伤度来度量桥梁结构或构件的损伤程度，并采用模糊数学原理，建立了桥梁使用性能的模糊综合评估体系，并探索建立了桥梁评估的专家系统。

The optimization mathematical model was established based on this and the structure of support frame was optimized.

在此基础上，建立了优化数学模型，优化了支架结构。

A comprehensive review and expectation about researching status in quo and development trends of viscous flow numerical simulation technique are given in this paper and grids generation methods, numerical computation methods, turbulent model and moving boundary simulation methods are the emphasis study in the paper. On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

本文针对粘流场数值模拟技术的研究现状和发展动态作了比较全面的回顾与展望，重点研究了网格生成技术、数值求解技术、湍流模型技术和动边界模拟技术，在此基础上建立了模拟自由面湍流场的数学模型，并成功地应用到二维溢流坝和带闸墩的三维溢流坝过坝水流的数值计算。

This paper fucuses on research about the methods of comprehensive evaluation for engineering crane according to studying the traits of the engineering crane, fuzzy math, grey theory, analytic hierarchy method and etc. The primary research contents and results are presented as follows:(1) Factors system of comprehensive evaluation for engineering crane is put forward.

本文在了解履带起重机、汽车起重机等工程起重机的特点、熟悉模糊数学、灰色理论、层次分析法等综合评价方法的基础上，进行了工程起重机综合评价方法的深入研究。

The relationship between gas (NH_3) absorption efficiency and gas velocity through tray's hole as well as liquid flow intensive is explorated, and a mathematical model for calculating gas Murphree plate efficiency of HVGT is derived.

本文以高负荷导向垂直栅板塔板流体力学研究为基础，对该塔板的传质性能进行了研究，探讨了塔板气相氨吸收效率与板孔气速和液流强度的关系，推导出了HVGT气相Murphree板效率数学模型。

The main courses are political theory and foreign language, engineering mathematics, elasto-plastic mechanics, computer applications, fluid mechanics, seepage mechanics, numerical simulation of petroleum deposits, petroleum chemistry, recovery ratio theory, petroleum and natural gas exploration techniques, petroleum and natural gas well engineering, shaft engineering, natural gas engineering, petroleum deposit engineering, pipe engineering for petroleum transport, pipe engineering for gas transport, petroleum and gas transport, simulation of petroleum and gas pipes, natural gas liquefaction technique, management theory and energy economics.

研修的主要课程有：政治理论课、外语课、工程数学、弹塑性力学、计算机应用技术、高等流体力学、高等渗流力学、油藏数值模拟、油田化学、采收率原理、现代油气勘探技术、现代油气井工程、现代凿井工程、天然气工程、高等油藏工程、高等采油工程、高等输油管道工程、高等输气管工程、油气田采输系统、油气管道运行模拟、天然气液化技术、高等管理学基础、能源经济等。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。