基本类

We then introduce a conformal invariant quantity which is formulated in terms of the square of the length of the trace free part of the second fundamental form and the mean curvature, and prove that if this quantity is bounded above by that value of the Clifford torus then x is either a totally umbilical sphereor a conformal Clifford torus.

接著我们介绍一个由第二基本型式迹为零部份的张量长度平方与平均曲率形成的保角不变量，并证明此保角不变量的上界若为Clifford环面之值，则x不是全脐球面就是Clifford环面的保角类。

Under traditional education, blind children go to these schools to learn braille and basic scientific and cultural knowledge.

根据传统的教育模式，盲童进入这类学校学习盲文和基本的科学文化知识。

In order to implement nonlinear predictive control for the controlled plant, a T-S fuzzy predictive model is built on-line by using fuzzy clustering and linear identification, and discrete optimization of the control action is carried out according to the principle of Branch and Bound method.

算法由两部分组成：第一部分采用模糊聚类和线性辨识方法在线建立系统的T-S模糊预测模型；第二部分基于分支定界法的基本原理对控制量进行离散寻优，从而实现对象的非线性预测控制。

The traditional methods such as morphology and ecology have provided basic tools for identifying the cephalopod structure, in which the way based on statolith aging has become important.

分析认为，头足类种群结构的研究在世界范围内已经取得了很大的进展，传统的形态学和生态学方法为其鉴定提供了基本的手段，其中利用耳石对其生长和产卵季节等进行推算是当前研究的主要手段之一。

It uses distributed multi-agent simulation method to construct a supply chain coordination model, chooses pump enterprise as the application case of this model, and emphasizes the simulation module of coordination center Agent and manufacture Agent.

利用分布式多Agent仿真建模方法的基本思想，选择某泵类产品企业的供应链作为研究对象，着重分析和设计了基于分布式多Agent的供应链协调仿真模型，并重点构造了供应链的协调中心Agent模块和生产商Agent模块的仿真模型。

Traffic flow has a characteristic of time series. Similarity measurement is one of the important problems in time series clustering problems.

交通流数据具有时间序列特征，相似性度量问题是时间序列聚类中的最基本的问题之一。

Rotating disks are the basic mechanical element of steam and gas turbines, grinding wheels, circular saws, and computer disk memories.

旋转圆盘是工业中应用广泛的一种基本机械元件，它广泛的应用于旋转机械，诸如涡轮机、圆锯、计算机硬盘等，上述系统中这些盘类结构严重的横向振动将使机器工作时的精度降低﹑动态性能下降以及造成被加工材料的浪费，严重时甚至使圆盘元件损坏。

Rotating disks are the basic mechanical element of steam and gas turbines, grinding wheels, circular saws, and computer disk memories. Large amplitude transverse vibration of rotating disks can cause failure of turbine wheels due to wheel-case contact, cutting inaccuracy for grinding wheels and circular saws, the waste in material and head-tracking errors in computer disk memories.

旋转圆盘是工业中应用广泛的一种基本机械元件，它广泛的应用于旋转机械，诸如涡轮机、圆锯、计算机硬盘等，上述系统中这些盘类结构严重的横向振动将使机器工作时的精度降低、动态性能下降以及造成被加工材料的浪费，严重时甚至使圆盘元件损坏。

As previously mentioned, we will use the Text field as base class, since it provides most of the functionality we need.

先前同样地提到，我们将使用文本域作为基本的类，它提供了我们需要的大部份的功能。

Examples of basic units might be a single class or a single function.

基本单元的例子可能是单个类或单个函数。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。