*Vertices 4
1 "火炸药学报" 0.0 0.0 0.0 x_fact 6.232295 y_fact 22.946176
2 "爆破器材" 0.0 0.0 0.0 x_fact 1.133144 y_fact 9.065156
3 "固体火箭技术" 0.0 0.0 0.0 x_fact 9.915014 y_fact 18.130312
4 "推进技术" 0.0 0.0 0.0 x_fact 5.665722 y_fact 49.858357
*Matrix 
0.000000 0.236326 0.423953 0.222202 
0.236326 0.000000 0.000000 0.000000 
0.423953 0.000000 0.000000 0.698102 
0.222202 0.000000 0.698102 0.000000