*Vertices 7
1 "爆炸与冲击" 0.0 0.0 0.0 x_fact 3.993856 y_fact 12.135177
2 "火炸药学报" 0.0 0.0 0.0 x_fact 1.996928 y_fact 14.746544
3 "南京理工大学学报" 0.0 0.0 0.0 x_fact 0.614439 y_fact 3.225806
4 "爆破器材" 0.0 0.0 0.0 x_fact 4.608295 y_fact 11.059908
5 "爆破" 0.0 0.0 0.0 x_fact 8.141321 y_fact 39.324117
6 "火工品" 0.0 0.0 0.0 x_fact 1.996928 y_fact 5.683564
7 "工程爆破" 0.0 0.0 0.0 x_fact 6.605223 y_fact 13.824885
*Matrix 
0.000000 0.000000 0.000000 0.284439 0.000000 0.205301 0.257428 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.284439 0.000000 0.000000 0.000000 0.204243 0.000000 0.299261 
0.000000 0.000000 0.000000 0.204243 0.000000 0.000000 0.651091 
0.205301 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 
0.257428 0.000000 0.000000 0.299261 0.651091 0.000000 0.000000