*Vertices 7
1 "爆炸与冲击" 0.0 0.0 0.0 x_fact 2.645503 y_fact 11.463845
2 "火炸药学报" 0.0 0.0 0.0 x_fact 2.116402 y_fact 12.522046
3 "南京理工大学学报" 0.0 0.0 0.0 x_fact 1.058201 y_fact 4.585538
4 "爆破器材" 0.0 0.0 0.0 x_fact 5.643739 y_fact 10.582011
5 "爆破" 0.0 0.0 0.0 x_fact 8.112875 y_fact 40.211640
6 "火工品" 0.0 0.0 0.0 x_fact 3.350970 y_fact 5.467372
7 "工程爆破" 0.0 0.0 0.0 x_fact 7.583774 y_fact 15.167549
*Matrix 
0.000000 0.000000 0.242885 0.271025 0.000000 0.370870 0.000000 
0.000000 0.000000 0.000000 0.233492 0.000000 0.394399 0.000000 
0.242885 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.271025 0.233492 0.000000 0.000000 0.330393 0.547689 0.459995 
0.000000 0.000000 0.000000 0.330393 0.000000 0.000000 0.645116 
0.370870 0.394399 0.000000 0.547689 0.000000 0.000000 0.390632 
0.000000 0.000000 0.000000 0.459995 0.645116 0.390632 0.000000