*Vertices 4
1 "强激光与粒子束" 0.0 0.0 0.0 x_fact 2.739726 y_fact 72.328767
2 "核技术" 0.0 0.0 0.0 x_fact 3.013699 y_fact 9.178082
3 "核动力工程" 0.0 0.0 0.0 x_fact 0.410959 y_fact 8.767123
4 "原子能科学技术" 0.0 0.0 0.0 x_fact 5.068493 y_fact 9.726027
*Matrix 
0.000000 0.267942 0.000000 0.345755 
0.267942 0.000000 0.000000 0.468361 
0.000000 0.000000 0.000000 0.412325 
0.345755 0.468361 0.412325 0.000000