例句與用法

1. First integral and integral invariants of relativistic birkhoff systems
   系統(tǒng)的第一積分和積分不變量
2. Establishment of the first integration and integral invariants of the relativistic birkhoff system
   系統(tǒng)的第一積分與積分不變量的構造
3. In order to prove the existence of the periodic boucing solutions , firstly we will introduce a new coordinate transformation , transform the system from right half plane to the whole plane . and give the relation of the eigenvalues of hill ' s equation and the rotation numbers , using this approach and pioncar - birkhoff twist theorem , we proved the existence of the periodic bouncing solutions for asymptotical linear oscillator
   對于周期解的存在性證明，我們引進新的坐標變換把右半平面上的碰撞問題轉化到整個平面上，給出旋轉數(shù)與hill方程的特征值的關系，并以此來度量漸近線性振子，再應用pioncar - birkhoff扭轉定理得到周期碰撞解的存在性。
4. First , we describe the birkhoff center , the minimal attractive center and the minimal attractor . second , we give relationships among the attractor of axiom a , the non - wandering set , the limit set , the birkhoff center , the probability limit set , the minimal attractive center , the minimal attractor , the ruelle attractor and the measure center
   首先給出birkhoff中心、極小吸引中心、極小吸引子的刻劃，然后給出對于公理a吸引子，非游蕩集、極限集、 birkhoff中心、概率極限集、極小吸引中心、極小吸引子、 ruelle吸引子以及測度中心之間的一個層次關系。