数学基础

According to the physical mechanism, the interrupting process of the low voltage circuit breaker is analyzed.

以磁流体动力学为基础，提出了一种低压断路器的电弧等离子体动态数学模型。

The number of sectors is extended from 22 to 39 to be adapted to China status, as well as the demand functions. The circular economy is also considered to make the mathematical energy description more close to the reality as the resource saving and comprehensive reclamation are being advocated.

将模型原来的22个部门扩展到适合我国国情的39个部门，相应地扩展了部门需求函数；考虑到我国近年来大力提倡提高能源资源的综合利用率，模型中增加了循环经济函数，使模型中有关能源资源开发利用的数学描述更接近实际；使用混合型投入产出表技术实现了各能源品种在物质量和价值量上的一致性，为模型的优化计算奠定了基础。

In the paper, the math model of the fitting machining benchmark curve of stone slice has been given, which used on the handrail of eddied ladder ,and circular helix has been used to be a fitting curve.

本文给出了旋转扶梯石材贴片的加工基准曲线拟合的数学模型，以空间螺旋线作为拟合曲线，为石材数控线切割机提供了理论基础，解决了石材加工行业中的实际问题。

In the paper, the math model of the fitting machining benchmark curve of stone slice has been given, which used on the handrail of eddied ladder , and circular helix has been used to bi a fitting curve, the general control machining linear slicer of stone, and has resolved the practical question on the machining of stone.

本文给出了旋转扶梯扶手石材贴片的加工基准曲线拟合的数学模型，以空间螺旋线作为拟合线，并给出用c语言编写的通用处理程序，为石材数控线切割机提供了理论基础，解决了石材加工行业中的实际问题。

This paper has put forward an activated sludge system modelbased on the simplified bio-reaction dynamics modeland the secondary clarifier model.

以简化的生物反应动力学模型和二沉池沉淀模型为基础，建立了普通活性污泥系统数学模型。

This paper is aimed to study women's body shape and the structures of women's close-fitting underwear, besides, to explore the technical routes and methods of realizing the virtual design of underwear patterns.

在抽样调查的基础上分析了女性体型的身高差异和地域差异，并建立了与内衣结构设计密切相关的女性胸部数学模型。

This pa-per is aimed to study women's body shape and the structures of women's close-fitting underwear, besides, to explore the technical routes and methods of realizing the virtual design of underwear patterns.

在抽样调查的基础上分析了女性体型的身高差异和地域差异，并建立了与内衣结构设计密切相关的女性胸部数学模型。

On the basis of the results, a mathematical model is developed to explain coalescence growth process of UFMP.

在此基础上建立了团聚生长数学模型，该模型能较好解释超微粉的团聚生长过程。

This paper introduces the research results of techniques of testing PC pump oil well through one-year efforts. Which covers the mathematical models of a number of force characteristics strength analysis, and resonance critical problems of rotation rod-string in PC pump wells: resulting of testing method of polish-rod load and rotation rate on the basis of feasible demonstration and technical requirement analysis; study and manufacture of system of testing PC pump well, which involves sensor, collector ring, acquisition circuit and computer; research and determination of assistant technology of testing force on rotation polish-rod and formulation of testing force on polish-rod. A spot testing has been carried out by means of the above research fruit and good results have been achieved.The success testing results in has laid a strong foundation for the oil well diagnosis.

本论文介绍了对螺杆泵采油井的研究成果，其内容包括，对螺杆泵采油井中的旋转杆柱的若干受力特征、强度分析方法及共振临界问题进行数学建模；在可行性论证和技术需求分析的基础上，研究产生了对油井进行光杆负载和旋转速度测试的办法；研究制作了螺杆泵采油井测试系统，它包括传感器、集流环、采集电路和计算机等；研究确定了对实施旋转光杆测力的辅助工艺；制定了对光杆受力进行测试作法，利用以上研究成果实施了现场测试，并取得了理想的结果。

On the basis of analyzing the reason that produce hydraulic impact, the dynamics of vibration wheel of vibration compactor and dynamics of vibration hydraulic system were analysed, the mathematics model of vibration hydraulic system was set up and its output models for pressure and flow were deduced.

在分析液压冲击产生原因的基础上，进行了振动压路机振动轮的动力学分析和振动液压系统的动态分析，建立了振动液压系统的数学模型，同时推导出系统压力和流量的输出模型。

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。