*Vertices 3
1 "中国石油大学学报" 0.0 0.0 0.0 x_fact 3.530450 y_fact 11.738747
2 "测井技术" 0.0 0.0 0.0 x_fact 1.941748 y_fact 12.180053
3 "石油勘探与开发" 0.0 0.0 0.0 x_fact 1.853486 y_fact 76.081200
*Matrix 
0.000000 0.226325 0.307799 
0.226325 0.000000 0.000000 
0.307799 0.000000 0.000000