数学

The author of this article re-experience of the study of higher mathematics and modern mathematics highlighting knowledge structure, as well as carrying out questionnaire and research.

本文作者以问卷调查和实践研究为手段，以知识重构为切入点，亲身体验再次学习高等数学和现代数学内容的过程。

At present , concentrate on the research of rough sets theory mainly: The popularization of the rough sets model collected, the uncertainty research of the problem, with other treatment uncertainty, fuzzy mathematics relation and complementation of theories of questions, the research of the pure mathematics theory, rough sets research and research of the artificial intelligence other directions relation that collect ,etc, some of the research is by the push that is used is produced , some of pure theories.

目前，对粗糙集理论的研究主要集中在：粗糙集的模型的推广，问题的不确定性的研究，与其他处理不确定性，模糊性问题的数学理论的关系与互补，纯粹的数学理论方面的研究，粗糙集的算法研究和人工智能其他方向关系的研究等，这些研究有的是受应用的推动而产生的，有的是纯理论的。

In another two-three years I am going to be reading about maths, even though I'm dying to avoid it.

在未来2，3年内，我还要学习数学，即使我尽力地想避开数学。

A mathematical model of airlift-loop reactor was developed with the two-fluid model and the theory of two-phase flow.

采用双流体模型和气液二相流体动力学理论建立了气升式环流反应器流体流动的数学模型，在此模型的基础上利用溶质渗透理论和各向同性湍流理论建立了局部液相体积传质系数数学模型。

In this paper,taking the rotary furnace of Tianjin steel tube company for the research object, an optimal mathematical model of the company's rotary furnace for continuing heating up semi-finished steel tube has been set up and the numerical analysis is made and a computer simulating interface has been developed .

以天津钢管公司的环形加热炉为研究对象，建立了环形加热炉管坯连续加热过程数学模型，并进行了数值解析。同时开发了计算机仿真界面，对管坯在炉内的加热情况进行了数值模拟，利用现场实验数据对所建立的数学模型进行了验证。

This paper studies the mathematical simulation of the "properties-temperature" curve of ductile-brittle transition process for materials and finds the best mathematical model of ductile-brittle transition.

研究了Cr24Al2Si铁素体不锈钢韧脆转移过程的性能-温度曲线的数学模拟，找到了其最佳的韧脆转移数学模型。

Based on the water environment spatial data mining and visualization method, the paper presents these main characteristics and innovations:①Measurement of contamination fluxes:A scene-based research strategy is proposed:measurement /water quality analysis→flow field simulation→contamination transformation rule→fluxes scene simulation→temporal-spatial rule analysis.②Serial numerical models of water environment in the Qiantang River:The controlled equations of the flow field model of the main river,united controlled equations of the main contamination fluxes and water quality prediction model at emergent time are set up.③GIS-based water quality and contamination fluxes decision-making assistance system:A water environment database has been set up;based on MapX and C#.net platform,a system has been developed to facilitate visual inquiry,decision-making and graphics export.

本文基于水环境空间数据挖掘与可视化的研究方法与体系，研究中的主要特色与创新点为：①河流污染物通量测算的技术与方法：提出了基于工况测量/水质分析→流场模拟→污染规律解析→通量情景模拟→时空规律分析的研究方案；②钱塘江水环境模拟系列数学模型：建立了钱塘江干流研究区域流场数学模型的控制方程、主要污染物通量模型的联合控制方程、突发污染事故水质预报模型的基本方程；③基于GIS的水质预报与污染物通量决策支持系统的研发：建立水环境时空数据库，基于MapX和C#。net平台进行系统的构建与开发，为研究的系列成果提供可视化的查询、决策与图形输出。

After a year of doing part-timehobbyist catch-up math, you're going to be able to do a lotmore math in your head, even if you never touch a pencilto a paper.

在做了几年的业余数学爱好者之后，你打算做更多的数学，甚至你从没碰过铅笔和纸。

After a year of doing part-time hobbyist catch-up math, youre going to be able to do a lot more math in your head, even if you never touch a pencil to a paper.

在做了几年的业余数学爱好者之后，你打算做更多的数学，甚至你从没碰过铅笔和纸。

After a year of doing part-time hobbyist catch-up math, you're going to be ableto do a lot more math in your head, even if you never touch a pencil to a paper.

在做了几年的业余数学爱好者之后，你打算做更多的数学，甚至你从没碰过铅笔和纸。

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。