*Vertices 4
1 "催化学报" 0.0 0.0 0.0 x_fact 10.911809 y_fact 43.946188
2 "分子催化" 0.0 0.0 0.0 x_fact 7.473842 y_fact 14.499253
3 "石油化工" 0.0 0.0 0.0 x_fact 7.025411 y_fact 22.421525
4 "天然气化工" 0.0 0.0 0.0 x_fact 10.014948 y_fact 19.133034
*Matrix 
0.000000 0.741374 0.370386 0.534366 
0.741374 0.000000 0.399544 0.475185 
0.370386 0.399544 0.000000 0.463622 
0.534366 0.475185 0.463622 0.000000