Stability of equator for a class of 2n+1 degree polynomial system;
一类2n+1次多项式系统赤道环的稳定性
This paper is an attempt to present a general method to analyse the stability of equator in a class of odd number degree polynomial system.
给出了研究一类奇数次多项式系统赤道环的稳定性的一般方法 ,得到了九次多项式系统的前 12个奇点量公式及在赤道环的一个邻域内充满闭轨的充分条
In this paper, We discuss the existence of the equatorial limit circler of a class of cubic systems by using the method of Poincare transmations.
本文用Ｐｏｉｎｃａｒｅ＇变换的方法研究一类三次系统存在赤道极限环的条件。
The two are linked up and formed as a system of bichannel circulation.
“双道循环”的意义在于教学流程管理的监控本身正是教学质量管理的监控之研究对象,其研究成果将于下一个监控周期转入教学流程管理,或反馈并自我完善于教学质量管理。
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
The trade wind cell is, on the average, confined to30 degrees poleward of the equator.
平均来说，信风圈限于离赤道（极地方向）0度的纬度带里。
The equator. Used with the.
赤道赤道。和the连用
than that from the equator to the South Pole.
比赤道到南极间的距离稍远，
The flattening and swelling are too small to see.
两极的扁平和赤道的凸出都无法察觉。
The Limit Cycle of a Kind of Kolmogorov s System;
一类Kolmogorov系统的极限环
The corona is thickest at the Sun's equator.
光环带在太阳的赤道区最厚。
know one's limitations
知道自己能力的极限
Limit Cycles Near Homoclinic and Double Homoclinic Loops;
同宿环及双同宿环附近极限环的个数
Water tends to move from the poles toward the equator.
因而水会倾向于由极区往赤道地区移动。
As a result the earth bulges slightly at the equator and is slightly flattened at the poles.
结果，地球在赤道上微微凸出，而在两极微微扁平。
a great circle on the celestial sphere that passes through both celestial poles.
通过天体球两极与天体赤道成直角相切的大圈。
The equator is a great circle midway between the North and South Poles.
赤道圈是一个位于南北极当中的大圆周。
A Method of Precisely Adjusting the Polar Axis of an Equatorial Radio Telescope
一种赤道式射电望远镜极轴的精密校准方法
On the application of the stereographic projection in the stability evaluation of the tunnel's surrounding rocks
赤平极射投影在隧道围岩稳定性评价中的应用
limit level [environmental quality performance limit]
极限水平〔环境质素表现规限〕
Equatorial Customs Union
赤道关税同盟(赤道税盟)
It looks at extreme sports and the people who participate in them.
节目报道极限运动和那些参加极限运动的人。