*Vertices 8
1 "沉积学报" 0.0 0.0 0.0 x_fact 2.354095 y_fact 7.013242
2 "中国石油大学学报" 0.0 0.0 0.0 x_fact 2.206964 y_fact 4.487494
3 "石油与天然气地质" 0.0 0.0 0.0 x_fact 6.792545 y_fact 17.900932
4 "新疆石油地质" 0.0 0.0 0.0 x_fact 5.345758 y_fact 9.612555
5 "西安石油大学学报" 0.0 0.0 0.0 x_fact 3.384012 y_fact 3.800883
6 "石油学报" 0.0 0.0 0.0 x_fact 4.291319 y_fact 12.309956
7 "天然气工业" 0.0 0.0 0.0 x_fact 5.836194 y_fact 19.053458
8 "石油勘探与开发" 0.0 0.0 0.0 x_fact 5.198627 y_fact 25.821481
*Matrix 
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0.277614 0.000000 0.000000 0.348348 0.491109 0.221809 0.000000 0.222317 
0.262319 0.259287 0.348348 0.000000 0.682641 0.358287 0.243965 0.414543 
0.439523 0.614260 0.491109 0.682641 0.000000 0.585485 0.373617 0.736470 
0.000000 0.456994 0.221809 0.358287 0.585485 0.000000 0.216186 0.250637 
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