数学基础

This method is built at the basis of similative of the mathematic relation between the torsion problem of pole and elasticity membrane which is under the action of equal side pressure and exaggerates tight around.

为了解决较复杂截面杆件的扭转问题，特提出薄膜比拟法。该方法是建立在柱体扭转问题与受均匀侧压力而四周张紧的弹性薄膜之间数学关系相似的基础上。

This paper presents a simple but efficient path capacity model which can reinforce the theoretical foundation of the wireless mobile computing.

旨在为移动计算中多跳网络链路的研究建立一个计算复杂度较低的通用分析模型，奠定一定的数学研究基础。

For further situational teaching high school mathematics to provide a preliminary basis for the theory and practice.

为进一步开展高中数学情境教学提供了初步的理论和实践的基础。

The map is compiled by some of the mathmatical models that is established according to the quantiative relations between the stand density of slash pine and the different factors of tree measuration, on the basis of data of 220 plots of slash pine in Guangdong, and the law of stand density effect.

用全省范围内调查所得的220块标准地作为编图、检验材料，以林分密度效应规律为基础，根据湿地松林分密度与林分各测树因子之间的数量关系，建立各种数学模型，编制出广东省湿地松人工林密度管理图。

Mary had hard sledding in her math course because she was poorly prepared.

玛丽的数学学得非常吃力，因为她基础差。

Kathy had hard sledding in her math course because she was poorly prepared.

凯西的数学很难进步，因为她的基础太差。

This paper gave the detailed reviews on previous research results on contaminant transportion and transformation, and pointed the unsolved problems and direction of the research. Analytical solation, numerical modeling and physical tests were used to investigate contaminant transportion and transformation in soil and groundwater in present study.

本文在评述污染物迁移转化研究进展的基础上，分析了现有成果的存在问题和研究的发展趋势，采用了数学模型解析计算、数值计算和物理模型试验相结合的方法，对污染物在土壤及地下水中迁移转化规律进行了深入研究。

On the basis of analyzing the principles of interleaver filters of the interference of polarized light and planar lightwave circuit-type lattice structure, the equivalent mathematical representation of the spectral transmittance of the two kinds of interlearers is revealed. The equivalent relationships of the structural parameters of them are given.

在分析比较双折射晶体偏振光干涉型和平面波导环形格子结构型光交错复用滤波器原理的基础上，揭示了两者在光谱透射率的数学上的等效性，给出了两者结构参量之间的等效关系，可以直接利用经简单傅里叶级数对比法获得的晶体的结构参量对平面波导环形格子结构型光交错复用滤波器进行结构设计。

Based on the theory of Gabor expansion and Gabor spectrogram , the representation of the discrete Gabor spectrogram is first derived.

在详细阐述Gabor展开和Gabor谱理论的基础上，首次对离散Gabor谱进行了严格的数学推导和证明。

Complete Principle of Measurement , as the basic literature of large calendar mathematics series Chongzhenlishu, was the beginning of the Western trigonometry, spherical astronomy and measurement into China, involving area, volume measurement, flat triangle, spherical trigonometry and spherical astronomy's theory as well as measuring instruments'applying. Complete Principle of Measurement embodies Chongzhenlishu's axiomatic mathematics and astronomy and makes a contribution to the further spread of the Western learning.

《测量全义》作为编撰大型历算丛书《崇祯历书》的基础文献，是西方三角学、球面天文学及测量术系统传入我国之始，涉及面积、体积测量，平面三角、球面三角和球面天文学的基本理论以及测量仪器的制造和使用等，是《崇祯历书》中公理化数学和天文学体系的体现，为西学的进一步传播做出了贡献。

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。