向量

By the definition of Darboux type vector and rectifying Darboux type vector ,we constructed the rectifying type developable surfaces and Darboux type developable surfaces and tangential Darboux type developable surfaces ,and study these three developable surfaces relationship with Minkowski slant helices and Minkowski conical geodesic curves. Bying applying the singularity theoerical knowledge, We give a classification of special developable surfaces under the condition of the existence of such a special curve as geodesic.

通过定义三维Minkowski空间中的达布型向量以及修正达布型向量，构造出三维Minkowski空间中的三类可展曲面，即修正型可展曲面、达布型可展曲面和切达布型可展曲面，研究Minkowski斜螺线和Minkowski锥面测地线这两种特殊曲线和这些曲面的关系，并研究Minkowski斜螺线和Minkowski锥面测地线作为这些曲面的测地线的条件下，运用奇点理论的知识，对这三种可展曲面进行奇点分类。

A new filtering method for Synthetic Aperture Radar image is presented based on support vector regression and wavelet kernel function.

基于支持向量回归理论和小波支持向量核函数，提出了一种新的SAR滤波方法。

And then, wavelet transform is adopted to make the power decomposition and constructed relevant character vectors.

然后采用小波分析的方法对电压波形进行了能量分解，构造了相应的特征向量，得出了由特征向量分析判断故障的结论。

Through models analysis, the coefficients and the variances of residual errors were defined as eigenvector, templates of different flow regimes were built.

计算未知流型信号的特征向量模板特征向量的综合Mahalanobis距离，通过比较各判别距离的大小得到流型识别的结果。

It is better to introduce no other mass concept than the 'rest mass' m .

首先它把"质量"这应该属于某四维向量的大小名字强加在的此向量的时间部上。

It is better to introduce no other mass concept than the 』rest mass』 m .

首先它把「质量」这应该属於某四维向量的大小名字强加在的此向量的时间部上。

In this paper as an example of a typical large-span dome roof, the direct superposition method of Ritz vector s are used in the solution of the eigenvalue problem and the cal.

本文以典型的大跨圆拱屋盖为例，将里兹向量直接叠加法应用于屋盖系统特征值问题计算和风致响应分析，其特点是在误差逼近的基础上自动生成一组正交的里兹向量并用于缩减系统自由度数。

Compared by the response obtained by the traditional mode superposition method, the direct superposition method of Ritz vectors yields more accurate results with fewer vectors and the contributions of higher modes are not overlooked.

与传统模态叠加法算得的结果相比，里兹向量直接叠加法只用很少数目的向量就可以得到较精确的结果，而且高阶模态的贡献不会被忽略。

In the research, 28 characters including energy, informationization measure, fractal dimension, hue, cb, color moment, disease spot area, rotundity, figure factor, and others were extracted, and four approximate features were selected from 28 primordial features. The results indicated that the precision of the three kinds of maize disease recognition was higher than 90%.

研究中提取了墒、相关信息测度、分形维数、H值、Cb值、颜色矩、病斑面积、圆度、形状因子等28个特征向量，利用遗传算法优选出H值、颜色矩、病斑面积、形状因子等4个独立、稳定性好、分类能力强的特征向量，应用费歇尔判别分析法识别病害，准确率达到90%以上。

It used the inner product and discriminant rule to concentrate the row vectors of boolean matrix step by step, so the frequent item sets of transaction databases can be inducted quickly and intuitively.

即通过向量的内积运算和判别准则逐步浓缩布尔矩阵的行向量，从而快速、直观地归纳出事务数据库的频繁项集。

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。