center-focus是什么意思

网络释义

用法例句

The thesis is devoted to studying center-focus determination and existence and uniqueness of limit cycles for some planar polynomial differential systems.

本论文研究了几类平面多项式微分系统的中心焦点判定与极限环的存在唯一性问题，全文由四章组成。

To converge on or toward a central point of focus;be focused.

集中于焦点在中心焦点或向中心焦点集中；被集聚

Determination of Centre Focus for a Class of Non-Polynomial Differential System

一类非多项式微分系统中心焦点的判定

Criterion of Center-focus and Limit Cycle Bifurcation for a Class of Three-order Nilpotent Singular Points

一类三次幂零奇点的中心焦点判定与极限环分支

Center-Focus Determination and Bifurcation of Limit Cycles of the Equator for Planar Polynomial Differential Systems;

平面多项式微分系统中心焦点判定与赤道极限环分支

Center Problems and Bifurcation of Limit Cycles for Several Classes of Planar Polynomial Systems

几类平面多项式系统的中心焦点判定与极限环分支

Focal length: The distance between the centre of a lens and its principal focus.

焦距:镜头中心与其主焦点的距离。

The midpoint Between the foci is the center. One property of an ellipse is that the reflection off its Boundary of a line from one focus will pass through the other.

焦点之间的中点为中心。椭圆的一个特性是:连自一个焦点的直线边界反折会通过另一个焦点。

The flatter the ellipse, the farther apart are the foci, and the farther each focus is from the center .

椭圆越扁平，两焦点之间的距离越远，每个焦点离中心的距离也越远。

THE DETERMINATION OF CENTER-FOCUS AT THE INFINITY FOR A CLASS OF POLYNOMIAL DIFFERENTIAL SYSTEM;

一类多项式微分系统无穷远点的中心-焦点判定

Decision Theorems for the Center and Focus of a Class of Nonlinear Differential Equati ons

一类非线性微分方程组的中心和焦点判定定理

concentrate rays of light into a focus

把光线集中在焦点上

Focusing on what can go right rather than what might go wrong.

将焦点集中在如何让事情进展顺利，而不是一直担心会出错。

A greater focus on professional management and marketing became the hallmark of the shopping center industry.

较多聚焦在专业管理和营销，这成为购物中心行业的特点。

Application of Solution-Focused Brief Counseling in Sport Psychology

焦点解决短期咨询技术在运动心理咨询中应用评介

His mind was invaded by worry and anxiety.

他的心中充满焦虑。

He was containing anxiety.

他压抑着心中的焦虑。

The Role of Cognitive Anxiety In the Selection of Players;

从认知焦虑的身心特点看运动员选材

Developing Chinese Rural Special Education:Basis,Focus,Integration,Fulcrum

发展中国农村特殊教育:基点、焦点、接点、支点