*Vertices 9
1 "石油大学学报" 0.0 0.0 0.0 x_fact 4.564706 y_fact 8.188235
2 "江汉石油学院学报" 0.0 0.0 0.0 x_fact 0.470588 y_fact 1.647059
3 "石油钻采工艺" 0.0 0.0 0.0 x_fact 3.858824 y_fact 6.305882
4 "西安石油学院学报" 0.0 0.0 0.0 x_fact 1.176471 y_fact 1.835294
5 "钻井液与完井液" 0.0 0.0 0.0 x_fact 1.082353 y_fact 3.623529
6 "石油机械" 0.0 0.0 0.0 x_fact 1.600000 y_fact 8.470588
7 "石油钻探技术" 0.0 0.0 0.0 x_fact 1.929412 y_fact 10.400000
8 "石油学报" 0.0 0.0 0.0 x_fact 6.635294 y_fact 14.917647
9 "石油勘探与开发" 0.0 0.0 0.0 x_fact 6.211765 y_fact 44.611765
*Matrix 
0.000000 0.000000 0.502113 0.544488 0.000000 0.000000 0.219191 0.397741 0.424191 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.502113 0.000000 0.000000 0.365960 0.242146 0.218817 0.467531 0.351875 0.000000 
0.544488 0.000000 0.365960 0.000000 0.264764 0.260972 0.000000 0.405533 0.428369 
0.000000 0.000000 0.242146 0.264764 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.218817 0.260972 0.000000 0.000000 0.000000 0.000000 0.000000 
0.219191 0.000000 0.467531 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.397741 0.000000 0.351875 0.405533 0.000000 0.000000 0.000000 0.000000 0.399878 
0.424191 0.000000 0.000000 0.428369 0.000000 0.000000 0.000000 0.399878 0.000000