向量解析

And finally,the dominant characteristics are extracted which are composed of representative vectors of faces through analyzing the eigencurves using Fourier describer.

作为对人面特征的描述，最后利用傅里叶描绘子对特征曲线进行解析提取关键特征，得到人面的表征向量。

The last chapter talks about the H"yashenko"s two-side cycle theorem, that is, every two-side cycle of an analytic vector field in the real plane is the finite polycycle. The quadratic finiteness theorem is a direct corollary of this theorem.

最后一章介绍了Il'yashenko两边形定理，即实平面上解析向量场的任一两边形均为有限多边环，这个定理的直接推论便是二次系统的有限性定理。

The third chapter discusses and proves Il"yashenko"s Theorem, that is, if every vertex on the polycycle of an analytic vector field in the real plane is hyperbolic, then limit cycles cannot accumulate on this polycycle.

第三章详细讨论和证明了Il'yashenko定理，即平面解析向量场的多边环上每一顶均为双曲奇点，则此多边环附近不能结集无限多个极限环。

In order to improve calibration precision,projection matrixes of camera were obtained by optimization based on Householder orthogonalization transformation which has character of not changing the length of transformed vector.

根据豪斯赫尔德正交变换具有不改变被变换向量长度的特性，采用优化的方法来求得法方程的解析解，得到摄像机的投影矩阵，以提高标定精度。

Based on the model, the measurability analysis of fairway design, the precision control of model and the simulation valuation are discussed.

高阶线性方程组的精度分析，难以给出解析表达，为此提出了系数矩阵与常数项向量的行／列精度控制的方法。

The second chapter discusses and proves the Revised Dulacs Theorem, that is, if a polycycle of an analytic vector field has a monodromy map, then there is a semi-transversal for which the monodromy map is either flat, semi-regular, or the inverse of a flat.

第二章详细讨论和证明了修正的Dulac定理，即解析向量场的单一多边环，可选取一适当半匀断，使相应的单一变换芽或为平坦芽，或为半正则芽，或为平坦芽的逆。

We compute the Wigner function using the Qotoolbox of Matlab computer language, which creates the orthogonal bases on the vector space.

计算Wigner函数时，我们利用了Matlab语言的Qotoolbox工具包在向量空间中绘出其图形，这比解析的方法更快捷、方便。

Some analytical solutions can be obtained via the methods of separation variables and eigenfunction-vector expansion instead of the traditional semi-inverse solution.

放弃传统的半逆解法，利用变量分离法和辛本征函数向量的展开解法可以获得一些问题的解析解。

This paper has set up the fingerprints of the ephedrine by HPLC relevant parameters of 17 batches,and applied the vector norm to analysis it.

用HPLC法分离测定了不同种属、产地及年限的麻黄草的主要成分，根据17批供试品溶液HPLC图谱给出的相关参数建立了麻黄药材的指纹图谱，并用向量模算法对麻黄指纹图谱进行了解析。

The basic relationship between the the first half-wave peak value of transient current and the initial firing angles is found by means of analytical method.The practical method is put forward to determine the initial two-phase and the third phase firing angles with the limiting value and the space vector varying track of transient current.And then the subsequent series of firing angles with the even step are calculated by using the speed at the time of re-switching.The suppressive effect to the inrush current is verified with simulation and experiment of rapid soft re-switching control,by which the influence of different speed to rapid soft re-switching course is analyzed besides.3 To analyze the power loss for typical periodically variable running load and deeply study the energy-saving principle and control mode of the intermittent power supply approach. Futhermore,the novel integrated energy-saving control technique is developed on base of the intermittent power supply approach.

通过解析方法找到快速软投入初始触发角与瞬态电流首半波峰值加热板之间的基本关系，进而提出了由限流值和空间向量轨迹确定初始两相和第三相触发角的方法，并以固定步长均匀递减的方式由投入时转速计算出其它后续触发角；结合仿真和实验验证了快速软投入对冲击电流的抑制作用，并分析了不同转速下投入时对电源快速软投入过程的影响。3对典型周期性变工况负载特性进行能耗分析，深入研究断续供电节能机理和控制模式，并进一步发展了以断续供电为主的综合节能控制新技术。

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。