数学基础

Besides, the traditional Steam Pressurizer was used widely in the world nowadays, there are so few papers about the Nitrogen Pressurizer. In this paper the mathematical model and dynamic characteristics simulation of the Nitrogen Pressurizer have been built to create a good environment for Integrated reactor research .

由于国内外以往较多采用的是蒸汽式稳压器，有关氮气稳压器的文章较少见，本论文中所研究的氮气稳压器的数学模型和动态特性仿真，为今后一体化反应堆的研究奠定了良好的基础。

First, an extended rough set model based on valued tolerance relation and prior probability obtained out of incomplete information system is founded. Then, as a part of the model, the attribute reduction of incomplete information system and the corresponding discernibility matrix are proposed, and the attribute reduction is obtained by the normal form transform.

作者首先从扩展粗集理论适应范围的角度出发，引入信息系统对象的先验概率，结合量化相容关系的思想，提出基于先验概率的相容关系模型，然后以该模型为基础研究了不完备信息系统的属性约简，通过严格的数学证明，得到基于分辨矩阵的属性约简算法。

Based on the fuzzy probability theory, a new model of fuzzy probability comprehensive evaluation is developed.

以模糊概率理论为基础，建立了一种新的模糊数学综合评判模型－模糊概率模型。

Applying the probability statistical theory, this paper concludes the mathematical expression of "risk entropy", so as to assess the risk of tax planning.

在此基础上，应用概率统计理论推导"风险熵"的数学表达式以作为税务筹划方案风险程度的评价指标。

On the basis of separation density and probable error or imperfection, the quartile skewness and a parameter K that has the meaning of kurtosis are advanced. With above four characteristic values, a mathematical model called quartile model has been set up.

在分选密度、可能偏差或不完善度的基础上，引入了四分位偏度系数和类峰度系数K，直接用上述四参数构造了一个分配曲线数学模型-四分位模型。

And grey theory also are applied to appraisal and prognosticate in this course.

课程以系统工程理论为基础，应用模糊数学，灰色理论建模进行环境质量评价与预测，力求科学准确，并有利于程序化。

By comparison with theoretical K value to figure out variance and to find out the main soil character parameter. Using MATLAB software, theory of parameter modification is employed to modify parameters in Normal Equation. Eventually, the proper calculating model of K factor the same with the typical slope soil of highway in Hubei Province, is established.

比较理论土壤可蚀性因子K值及实测土壤可蚀性因子K值之间的差异，找出导致该差异的主要土壤性质参数，在此基础上运用MATLAB数学分析软件对诺模方程进行修正，以得到适用于湖北省孝襄高速公路边坡代表性土壤的土壤可蚀性因子K值的计算模型。

Mathematical modeling of the engine propulsion system is necessary for the system analysis and system design.

针对该系统进行数学建模是系统分析与设计的基础。

On the basis of analyzing pump-jet propulsor, inside flow fields are numerically simulated by using the software FLUENT, on the condition of setting up the physical models and the mathematic models and determining the boundary conditions.

在分析泵喷射推进器的基础上，建立了其数值仿真的物理模型和数学模型，确定了求解的边界条件，利用CFD软件FLUENT对泵喷射推进器的内流场进行了数值仿真。

According to the measuring demand of temperature distribution, the measuring principle of color pyrometer is emphasized and modeled.

在分析温度场测量要求的基础上，推导了比色光学高温计的测量原理，建立了数学模型。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。