<数>轨线
3.GLOBAL TOPOLOGICAL STRUCTURE AND BIFURCATION CURVES FOR THE EQUATION OF TYPE(Ⅱ)δ=m=0
4.A curve that cuts all of a given family of curves or surfaces at the same angle.
5.THE GLOBAL STRUCTURE OF TRAJECTORY OF THE DIFFERENTIAL EQUATION (dx)/(dt)=-y+dx+mxy-y~2 (dy)/(dt)=x(1+ax)
6.The related theories of QCT and vector correlation are introduced in chapter one and two, respectively.
7.Some problems on the Gobal Structure of the Trajectories of dy/dt=-y(1+y-mx), dy/dt=x(1+ax).
8.global structures of orbits in R_2~+ for every case determined and factual ecological implications of this global structures explained.
9.The article discusses the difficulty with equivalent sag occurred during simultaneous stringing of contact wire and messenger wire in Urban Mass Transit, raises relevant resolution, which has been applied and showed good results in constructing Urban Mass Transit Experimental Line for Academy of Sciences, Ministry of Railways.
