1) the existence range of the periodic orbit
周期轨线的存在范围
1.
And also the existence range of the periodic orbit is given.
用计算机绘制系统的轨线相图 ,图中显示在某些情况下 ,周期轨线的存在、唯一性 ,并给出周期轨线的存在范
2) existence range
存在范围
1.
When the acoustic velocity out of a borehole is lower than the acoustic velocity in the borehole,the existence range of real poles is discussed.
以井外流体声波速度小于井内流体声波速度的情况为例,对流体-流体模型裸眼井中声场函数实极点的存在范围进行讨论,计算结果表明只有当轴向波数介于井内流体波数和井外流体波数之间时,声场函数才存在实极点。
3) existence of periodic solutions
周期解的存在性
1.
The existence of periodic solutions for closed-loop PWM DC-DC buck converter was studied by means of the equations of periods.
应用周期方程方法研究具有锯齿波特性的闭环PWM型buck DC-DC变换器T周期解的存在性问题,并给出了其在一个周期内仅有一次切换的T周期解存在的充分条件。
2.
We prove that in some cases,the geometric property of angle function implies the existence of periodic solutions.
本文研究了具有扭转性的二阶微分方程,证明在一定条件下通过角函数的扭转所表述的几何性质可以得到周期解的存在性。
4) periodic orbit
周期轨线
1.
Under the condition that the external force f or 1/ν is small enough for the 2D NavierStokes equations the following results are proved:for any point a in minimal global Battractor M,its ωlimit set ω(a) consist of single periodic orbit;periodic points are dense in M.
证明了二维Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程在粘性系数ν大或外力ｆ小的条件下，对极小全局Ｂ－吸引子Ｍ上每一点ａ，其ω－极限集ω（ａ）均由单一的周期轨线组成；周期点在Ｍ中稠。
2.
The existence, numbers,co-existence and incoexistence of 1-homoclinic orbit,2~n-homoclinic orbit,1- periodic orbit and 2~n-periodic orbit are obtained,and bifurcation diagrams are also presented.
不仅得到了1-同宿轨线,2~n-同宿轨线,1-周期轨线和2~n-周期轨线的存在性、数目、共存性和非共存性等结论,而且给出了系统的分支图。
5) existence in large scale
大范围解的存在性
6) Existence of periodic solution of order one
阶1周期解的存在性
补充资料：存在主义伦理学(见存在主义)
存在主义伦理学(见存在主义)
existentialist ethics
cu陀012加yilun淞Ue存在主义伦理学(existeotialist ethics)见存在主丸
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条