*Vertices 3
1 "中草药" 0.0 0.0 0.0 x_fact 17.959770 y_fact 64.655172
2 "药学学报" 0.0 0.0 0.0 x_fact 4.166667 y_fact 21.982759
3 "中国药科大学学报" 0.0 0.0 0.0 x_fact 5.316092 y_fact 13.362069
*Matrix 
0.000000 0.442775 0.463423 
0.442775 0.000000 0.385033 
0.463423 0.385033 0.000000