*Vertices 5
1 "清华大学学报" 0.0 0.0 0.0 x_fact 2.988506 y_fact 22.298851
2 "核技术" 0.0 0.0 0.0 x_fact 6.436782 y_fact 24.827586
3 "核动力工程" 0.0 0.0 0.0 x_fact 1.609195 y_fact 12.643678
4 "核电子学与探测技术" 0.0 0.0 0.0 x_fact 4.827586 y_fact 20.919540
5 "原子能科学技术" 0.0 0.0 0.0 x_fact 11.264368 y_fact 19.310345
*Matrix 
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0.000000 0.000000 0.000000 0.277861 0.395854 
0.000000 0.000000 0.000000 0.000000 0.434420 
0.000000 0.277861 0.000000 0.000000 0.370034 
0.356898 0.395854 0.434420 0.370034 0.000000