*Vertices 4
1 "地球物理学报" 0.0 0.0 0.0 x_fact 3.260870 y_fact 19.664032
2 "地球物理学进展" 0.0 0.0 0.0 x_fact 27.865613 y_fact 43.774704
3 "石油物探" 0.0 0.0 0.0 x_fact 7.806324 y_fact 23.418972
4 "石油地球物理勘探" 0.0 0.0 0.0 x_fact 3.853755 y_fact 13.142292
*Matrix 
0.000000 0.831339 0.000000 0.233342 
0.831339 0.000000 0.245136 0.318770 
0.000000 0.245136 0.000000 0.559641 
0.233342 0.318770 0.559641 0.000000