常用

It avoided the complicated number calculation of the characteristic matrix method ,and can get with the result with the characteristic matrix method homology.

它避免了常用的特征矩阵法中对反射率复杂的数值计算，并能得到与特征矩阵法相同的结果。

To solve the characteristic polynomial and the eigenvalues of square matrices with higher order normally is not an easy way.

1引言在高等代数中，求一个n阶方阵A的特征值时，常用的方法是求解A的特征多项式|λE-A|的根。

The commonest terms used in electricity today are Franklin's words: battery, brush, armature, chare, condense, conductor, plus, minus, positive, negative —— terms he made up as he made observations or conducted experiments.

如今电力方面最常用的术语是出于富兰克林的，例如：电池、电刷、电池、电刷、电枢、、电容、导体、正电、负电、阳极和阴极等。他创造这些属于就如同他观察或进行试验一样。

The network chat room in this project has all the functions of the common chat room. People can chat with each other at the same time, chat with one people privately and send expressions and pictures when users chat. And show the online user's list. In order to manage the users of the chat room, this system have designed the function of registration, management and leaving word.

本设计所完成的网络聊天室具有常用聊天室的所有功能，包括多人同时在线聊天、两人间的私密聊天、在发言的时候能够发送表情及图片，还能显示在线用户列表，同时，为了管理聊天室中的用户，设计了用户注册登陆功能，用户管理功能以及用户留言功能。

The famous Chebyshev's Inequality is usually used when estimating the boundary from above or below of probability .

在估计某些事件的概率的上下界时，常用到著名的切比雪夫不等式。

Introducing the user algorithm of the broadcast ephemeris, the algorithms are explained on principle, which are Lagrange Interplation and Chebyshev polynomial simulation. Then comparisons of calculating of satellite coordinate with broadcast ephemeris and with precise ephemeris are made.

推导了广播星历用户算法，对GPS数据处理中常用的拉格朗日内插和切比雪夫多项式拟合从原理上进行了阐述，并对广播星历卫星坐标计算和精密星历卫星坐标计算进行了分析比较。

When to get the coefficients of polynomial directly,the ill-conditioned matrix may be produced and effect the precision of result.Using orthogonal polynomial can avoid this problem.This paper introduces 4 orthogonal polynomial.In our discussion,it is proposed to use Chebyshev polynomial and Legendre polynomial,they are easier to sa...

讨论4种常用正交多项式在拟合卫星轨道与时间函数时的适用性；通过计算实例说明利用切比雪夫多项式和勒让德多项式做数据拟合时具有很高的精度；分析得出评定多项式拟合数据精度的适用阶数，实际应用中可降低工作量，提高计算效率；最后讨论同一多项式阶数下不同历元数对拟合结果的影响。

The article discussed Malicious Code technique, include signature code, check sum, software emulation, etc.

在分析了恶意代码的工作原理以后，总结了网络环境下恶意代码的新特点，讨论了防范恶意代码的技术，对于特征代码、校验和、行为监测、软件模拟等现在常用的检测恶意代码的技术进行了研究和总结。

Some error checking method commonly used in GPS data communication are analyzed in this paper such as sum check and Cyclic Redundancy Check,detailed calculation realization is also given in C l.

本文针对GPS数据通讯中目前常用的校验和校验以及循环冗余校验，从校验原理入手，具体给出其计算方法和C语言实现。

They can chelate with metal ions and then its can be determination by some analytical methods.

它与金属离子有很强的络合作用，分析化学中常用来作为金属离子的络合剂，然后用一定的分析方法来测定金属离子。

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。