*Vertices 4
1 "核技术" 0.0 0.0 0.0 x_fact 11.885246 y_fact 36.065574
2 "核化学与放射化学" 0.0 0.0 0.0 x_fact 13.934426 y_fact 23.360656
3 "同位素" 0.0 0.0 0.0 x_fact 6.557377 y_fact 11.065574
4 "原子能科学技术" 0.0 0.0 0.0 x_fact 9.836066 y_fact 29.508197
*Matrix 
0.000000 0.402657 0.827725 0.484557 
0.402657 0.000000 0.407113 0.809168 
0.827725 0.407113 0.000000 0.436946 
0.484557 0.809168 0.436946 0.000000