In chapter 2, center condition and bifurcation of limit cycles of quasi cubicsystem are I.
第二章研究了一类拟三次系统的中心条件与极限环分支问题。
2
This paper discuss the locally topological structure of higher order singular point for the plane cubicsystem in the first critical case and give a criterion by the coefficients of polynomials.
讨论了第一临界情形下的平面三次系统高次奇点的局部拓朴结构，并给出利用多项式系数的判断准则。
3
The transportable system is fully interoperable with the Cubic KITS systems now being used by U.S. pilots at air bases in Okinawa, Japan, and Osan and Kunsan air bases in the Republic of Korea.