*Vertices 3
1 "中国中药杂志" 0.0 0.0 0.0 x_fact 21.902655 y_fact 49.115044
2 "中药材" 0.0 0.0 0.0 x_fact 16.924779 y_fact 31.415929
3 "世界科学技术-中医药现代化" 0.0 0.0 0.0 x_fact 19.026549 y_fact 19.469027
*Matrix 
0.000000 0.739384 0.978019 
0.739384 0.000000 0.860331 
0.978019 0.860331 0.000000