*Vertices 3
1 "中华核医学杂志" 0.0 0.0 0.0 x_fact 2.403846 y_fact 74.038462
2 "同位素" 0.0 0.0 0.0 x_fact 5.769231 y_fact 9.134615
3 "原子能科学技术" 0.0 0.0 0.0 x_fact 0.480769 y_fact 16.826923
*Matrix 
0.000000 0.566490 0.000000 
0.566490 0.000000 0.563927 
0.000000 0.563927 0.000000