*Vertices 3
1 "化工学报" 0.0 0.0 0.0 x_fact 4.166667 y_fact 46.428571
2 "高校化学工程学报" 0.0 0.0 0.0 x_fact 6.746032 y_fact 39.682540
3 "化学工程" 0.0 0.0 0.0 x_fact 8.730159 y_fact 13.888889
*Matrix 
0.000000 0.256996 0.734172 
0.256996 0.000000 0.491824 
0.734172 0.491824 0.000000