*Vertices 3
1 "中国石油大学学报" 0.0 0.0 0.0 x_fact 9.154930 y_fact 26.525822
2 "油气储运" 0.0 0.0 0.0 x_fact 4.225352 y_fact 21.830986
3 "石油学报" 0.0 0.0 0.0 x_fact 4.460094 y_fact 51.643192
*Matrix 
0.000000 0.208393 0.457908 
0.208393 0.000000 0.200530 
0.457908 0.200530 0.000000