Let S(m,d,k) be the set of k-uniform supertrees with m edges and diameter d,and S1(m,d,k) be the k-uniform supertree obt......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......