*Vertices 3
1 "中国环境科学" 0.0 0.0 0.0 x_fact 12.018490 y_fact 22.958398
2 "环境科学学报" 0.0 0.0 0.0 x_fact 22.804314 y_fact 48.382126
3 "环境科学" 0.0 0.0 0.0 x_fact 11.710324 y_fact 28.659476
*Matrix 
0.000000 0.773010 0.798834 
0.773010 0.000000 0.742898 
0.798834 0.742898 0.000000