*Vertices 3
1 "石油大学学报" 0.0 0.0 0.0 x_fact 9.068010 y_fact 28.463476
2 "石油钻采工艺" 0.0 0.0 0.0 x_fact 7.052897 y_fact 20.151134
3 "石油学报" 0.0 0.0 0.0 x_fact 7.052897 y_fact 51.385390
*Matrix 
0.000000 0.493668 0.324386 
0.493668 0.000000 0.343795 
0.324386 0.343795 0.000000