准确描述

Equation with double cosine function can improve the accuracy of prediction when facing two peak time series data .

含有第二谐量的余弦方程能够更准确地描述具有两个高峰的周期性数据。

According to the connective relationship between crunode and other graphic element,a network topology algorithm for short circuit calculation is obtained,which describes the distribution network topological structure exactly and generates the data nec...

该算法不仅能够准确地描述配电网络拓扑结构，还能生成短路计算所需的数据。在实际系统运行中表明，该算法具有一定的实用价值。

The similitude rules of projectile penetrating into concrete thick sheet have been studied using dimension analysis method and similitude theory.

1引言人们对射弹侵彻混凝土时的破坏作用进行了长期、广泛、深入的研究，但目前还无法对过程进行准确的描述。

We overcome the previous drawbacks because one of the most important improvements is that we introduce a dissipative viscous force to simulate the effect of collision between gas clouds.

我们的结果同观测符合得很好，克服了以往研究中的缺憾(如环不稳定，位置不准确等)，主要的原因是由于我们引进了一个粘滞耗散过程来描述气体粒子之间的非弹性碰撞。

These kinds of analytical elements can describe the crack tip fields for the Dugdale model and can also be combined with the ordinate finite elements to form the semi-analytical finite element method.

该类超级单元能够准确地描述基于Dugdale模型的裂纹尖端场，可与普通有限单元相结合，构成半解析有限元法。

So a platform for management and service information transferring is needed, which makes information easer to be obtained by travelers, and regulate traffic demand.

另外，面向标志、标线等设施的传统的研究方法难以准确和深刻地描述交通系统中的信息流现象并解析其对交通系统的作用机理。

We expect a butcher to sell us eatable meat and that he doesn't misrepresent his wares.

我们希望屠夫卖给我们可食用的肉，他也准确地描述了他的货物。

The authors analyzed the study status of flow unit, considered that the combine of exact flow unit division and quantitative remaining oil description is the best method of searching advantaged potential area.This research provides that the method is an important geological basis for the oil field development management and the improvement of oil and gas recovery

笔者在分析流动单元研究现状的基础上，认为将准确的流动单元划分与定量的剩余油描述有机结合，即"动静"结合，是寻找有利挖潜区的最佳方法，并运用实例说明了该方法在油田生产实践中的应用，对提高油田采收率具有重要的指导意义。

It provides a way to find optimal lower dimensional approximations of the given data, and It enormously reduce the storage of the data which is needed when the physical processes is recurred. The physical process can be described in series expansion function that only is related to the time and space. It is optimal approximation of the given data in a certain least squares optimal sense. The most obvious advantage of the method is that it reduces the computation cost and computation time markedly.

它提供了一种描绘物理过程的有效方法，该物理过程可以写成一个只与时间相关的函数和一个只与空间相关的函数的展开式序列，且它们在均方意义上是最优的，在展开式中只需要少量的项数就可较准确地描述该物理过程，因此降低计算维数、减少计算量和节省计算时间是这个方法最明显的优点。

The application of flamelet model based on level set in premixed turbulence combustion;2. A methane turbulent non-premixed flame has been simulated numerically by the combination of laminar flamelet model and presumed probability density function.

将小火焰模型和假定的PDF方法相结合，模拟甲烷湍流射流扩散火焰，稳态火焰面结构由层流小火焰数据库得到，采用详细化学反应机理描述甲烷的氧化和NO以及碳烟的生成，数值模拟结果和实验数据吻合较好，说明小火焰模型可以较准确地计算出扩散湍流火焰中的燃烧过程。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。