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Since 1950 s, the research of numerical method for hyperbolic conservation laws is one of key research directions in computational mathematics. The finite difference method, specially TVD and ENO schemes, for hyperbolic conservation laws are very successful.

双曲型守恒律方程数值计算方法的研究，是二十世纪五十年代以来，计算数学中的一个重要研究方向。

We compare the parallel characteristics of spectral element and finite difference from the point of view of communications, communication-to-computation ratio and scalability.

结合以矩阵矢量乘积为主的迭代计算特点，从通信量、通信计算比和并行可扩展性等方面比较分析了离散格式对于并行计算的影响。

In this paper, we consider hyperbolic conservation laws, and the following work has been done to the finite volume method on unstructured meshes :In preface , we introduce the backupground of the oringe of the finite volume method, and point out the limitation of the finite difference methods and the finite element methods, and import the finite volume method.

本文主要考虑双曲型守恒律方程，对二维非结构三角形网格有限体积方法作了如下工作：介绍了有限体积方法的产生背景，指出了有限差分方法和有限元方法中的特点，对有限体积方法的产生和发展给出了比较详细的分析。

Let's fire up, be happy, be positive to help make a difference in the world.

让我们燃点起来，更快乐，更正面的为这个世界创造更多的不同。

The difference between an ordinary and a partial derivative was at first not explicitly recognized.

通常的导数与偏导数的区别在一开始并未被人们明确地认识。

The difference between an ordinary and a partial derivative was at first not explicitly recongized.

通常的导数与偏导数的区别在一开始并未被人们明确地认识。

Whether it is the company of first choice or of last resort makes no difference.

它究竟是人们的第一选择还是最后的退路，这并不重要。。。

Due to the difference of the terrain and rainfull between Taiwan and the other countries, the fishway of the check dam in Taiwan can not be completely imitated from other country. Therefore Slopeland Engineering Lab of Department of Soil and Water Conservation , NCHU makes a series of experiment in fishway of the check dam from 1998-2008. The experiments focus on structure of inclined section、horizontal section and U-turn horizontal section of the fishway.

有鉴於国内外地形及降雨条件的差异，台湾的防砂坝鱼道不能套用国外鱼道经验，因此国立中兴大学水土保持学系坡地工程研究室於1998年起至2008年不断进行防砂坝鱼道构造试验之模拟，分别探讨鱼道的倾斜段、水平段与回头弯段构造应用与水理分析。

The experiment fitted curve and the traditional non-shake theoretical curve has the big difference.

实验拟合曲线与传统无震荡理论曲线有较大差异。

we reached a two to five-fold difference between normal and cancer cells, including human cells in culture.

我们达成了4点58倍的区别正常和肿瘤细胞，包括人类细胞在文化。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。