*Vertices 3
1 "油气储运" 0.0 0.0 0.0 x_fact 4.651163 y_fact 22.222222
2 "石油学报" 0.0 0.0 0.0 x_fact 2.325581 y_fact 47.803618
3 "油田化学" 0.0 0.0 0.0 x_fact 2.842377 y_fact 29.974160
*Matrix 
0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000