*Vertices 4
1 "环境化学" 0.0 0.0 0.0 x_fact 5.750000 y_fact 8.750000
2 "中国环境科学" 0.0 0.0 0.0 x_fact 11.250000 y_fact 22.500000
3 "环境科学" 0.0 0.0 0.0 x_fact 14.000000 y_fact 35.750000
4 "安全与环境学报" 0.0 0.0 0.0 x_fact 11.000000 y_fact 33.000000
*Matrix 
0.000000 0.849361 0.921942 0.253301 
0.849361 0.000000 0.792818 0.283397 
0.921942 0.792818 0.000000 0.225603 
0.253301 0.283397 0.225603 0.000000