principal normal

It's normal to have these kinds of disputes, said Zhu Liqun, assistant principal at the China Foreign Affairs University. EU-China relations are growing more complex because the relationship is expanding.

存在这种争论是正常的，中国外交学院（China Foreign Affairs University）院长助理朱立群表示，鉴于中欧关系扩展，这种关系正在变得更加复杂。

First, discriminant analysis by grouping the sample is divided into financial crisis group and normal group, and then principal components factor into the model fitting Logistic regression model, and form the final prediction model.

首先通过判别分析对样本进行分组，划分为财务危机组和正常组，然后将主成分因子带入Logistic回归模型进行模型拟合，并形成最终的预警模型。

Discusses algebraically and geometrically the properties of the ruled surfaces in the Euclidean three-space, especially, the principal normal surfaces on which there are some special curves, such as Mannheim curves, Bertrand curves and general helices.

在三维欧氏空间中，作为特殊曲线，Mannheim曲线、Bertrand曲线以及一般螺线具有良好的几何和代数性质.讨论了三维欧氏空间中特殊曲线的主法线曲面。

Zheng Deyang represents the Zheng Deyang's Official Website of Harbin Normal University in China, and by individual name, will wish Principal Cheng Weimin to be better tomorrow!

郑德杨代表哈尔滨师范大学郑德杨官方网站，并以个人的名义，祝愿陈卫民校长明天会更好！

This article reviewed the principal and the image characteristics of normal cornea and coral dystropies.

本文主要介绍了共焦显微镜的原理、正常角膜和各种角膜营养不良的共焦显微镜图像特点.

The arc current and arc voltage are the input of the electrode controller which is the principal section of the electric arc furnace control system. It is the premise of assuring the normal working of electrode controller that arc current and arc voltage are measured accurately.

电弧电流和电弧电压是电弧炉控制系统最重要环节电极控制器的输入，精确测量电弧电流和电弧电压是保证电极控制器正常工作的前提。