矢量的

On the basis of the probe and research into space analytic geometry and seeing from the students ' thinking characteristics , this paper has got a proof about three vector double vector product theorem .

本文通过对空间解析几何的研究和探讨，从学生的思维特点出发，给出一个有利于学生认知结构形成的三矢量的双重矢性积定理的证明

A method of construct a quadratic uniform B-spline curve through data points is given.If the relative curvature of a certain curve on the first control point and the direction angle of the first port's tangent vector is given,here can get the whole curve by using the character of the port of quadratic uniform B-spline curve.

提出了一种二次均匀B样条插值曲线的构造方法，首先给定某一段曲线首点的相对曲率和该段曲线的首端切矢量的方向角，利用二次均匀B样条曲线的端点性质，求出其余各段曲线控制顶点，来生成整条插值曲线。

In this thesis, according the matrix forms in quantum mechanics and the experience of the author in theories and experiments we think that quantum parallelism can be understood equally as that quantum computers process the multiplication of U matrix and vectors directly.

在本文中，由量子力学中的矩阵形式并根据作者在从理论和实验工作中的个人体会，认为该原则被等价地表述为量子计算直接进行的就是U矩阵对矢量的乘法更有利于对量子算法的理解。

It can be used to demonstrate such as optical axis of the uniaxial crystal,principal plane,the ordinary wave front and the extraordinary wave front ,etc.

该仪器用于普通物理光学教学，能形象生动地演示单轴晶体中的光轴、主平面、o光和e光的波面、o光和e光各自的电矢量的振动方向、速率大小关系，并能灵活地结合课堂教学各种实例，说明在不同条件下，双折射的产生及其原因

The symmetric space voltage vector realized by TMS320F240 in software is introduced.

介绍了TMS320F240用软件生成对称空间电压矢量的方法，特别是针对高精度V/F值控制的应急通风机对交流变频调速的要求，通过检测直流侧电压实现对输入电压波动的前馈补偿，以提高输出电压精度，改善输出电流波形。

The influence of tailboard on the exit flow fields of compressor cascades with normal straight, positive and negative curved blades were investigated at zero incidence.

进行了带尾板的常规直叶片、正弯曲叶片、反弯曲叶片组成的三种矩型压气机叶栅在低速风洞上的实验研究，测量了叶栅出口流场，分析了零冲角下尾板对叶栅出口能量损失分布情况和二次流速度矢量的影响。

The shape of curve could be modified to satisfy the demand simply through the amendment of the first end curvature or the directional angle of the first port tangent vector or the weight factor of a certain curve.

该方法可以通过简单地调整某段曲线的首端曲率或该段曲线的首端切矢量的方向角或该段曲线的权因子对曲线进行调节。

C type cutter compensation method is also studied here, including analyses of detailed path transit situation, transit vectors and the whole process of establisment, implement, and finishing of C type cutter compensation.

本文同时还论述了C功能刀具半径补偿的实现方法，给出了详尽的C刀补轨迹转接情况分析和各种C刀补转接矢量的计算公式，并对C刀补的建立、进行和撤销过程进行了具体分析。

The experimental results show that the vector simulation method practically integrated single surface fire spread, crown fire spread, fire acceleration, fuel-fire and fuel moisture.

实验结果证明矢量的模拟方法是集成单个的地表火、树冠火、加速、飞火和可燃物含水率模型的更实际的技术。

When signals are uncorrelated, by using the specific weights in turn and refreshing the power measurements continuously, the time-changed DOA of signals can be traced.

在信号源不相关的情况下，通过对权矢量的循环使用和功率信号的更新处理，实现对DOA时变信号源的跟踪。

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。