*Vertices 6
1 "西南石油学院学报" 0.0 0.0 0.0 x_fact 5.509479 y_fact 8.293839
2 "石油钻采工艺" 0.0 0.0 0.0 x_fact 2.902844 y_fact 5.983412
3 "石油学报" 0.0 0.0 0.0 x_fact 5.509479 y_fact 15.936019
4 "天然气工业" 0.0 0.0 0.0 x_fact 3.850711 y_fact 8.234597
5 "石油勘探与开发" 0.0 0.0 0.0 x_fact 5.450237 y_fact 53.791469
6 "油田化学" 0.0 0.0 0.0 x_fact 1.540284 y_fact 7.760664
*Matrix 
0.000000 0.470365 0.453694 0.718935 0.423535 0.262549 
0.470365 0.000000 0.394745 0.436336 0.287453 0.000000 
0.453694 0.394745 0.000000 0.320424 0.393022 0.000000 
0.718935 0.436336 0.320424 0.000000 0.245276 0.000000 
0.423535 0.287453 0.393022 0.245276 0.000000 0.000000 
0.262549 0.000000 0.000000 0.000000 0.000000 0.000000