*Vertices 9
1 "给水排水" 0.0 0.0 0.0 x_fact 4.208311 y_fact 9.889532
2 "中国给水排水" 0.0 0.0 0.0 x_fact 8.890058 y_fact 14.992109
3 "中国环境科学" 0.0 0.0 0.0 x_fact 4.418727 y_fact 6.785902
4 "环境科学研究" 0.0 0.0 0.0 x_fact 5.102578 y_fact 6.259863
5 "环境科学学报" 0.0 0.0 0.0 x_fact 5.418201 y_fact 8.258811
6 "环境科学" 0.0 0.0 0.0 x_fact 7.417149 y_fact 11.993688
7 "上海环境科学" 0.0 0.0 0.0 x_fact 10.362967 y_fact 13.782220
8 "环境污染与防治" 0.0 0.0 0.0 x_fact 5.733824 y_fact 5.996844
9 "环境污染治理技术与设备" 0.0 0.0 0.0 x_fact 18.200947 y_fact 22.041031
*Matrix 
0.000000 0.841023 0.000000 0.000000 0.291053 0.232570 0.481323 0.564312 0.353693 
0.841023 0.000000 0.313712 0.267271 0.436050 0.438451 0.646727 0.671008 0.559455 
0.000000 0.313712 0.000000 0.914928 0.810892 0.816552 0.642697 0.765357 0.787765 
0.000000 0.267271 0.914928 0.000000 0.820365 0.860652 0.601449 0.777455 0.793475 
0.291053 0.436050 0.810892 0.820365 0.000000 0.788192 0.680033 0.765329 0.866637 
0.232570 0.438451 0.816552 0.860652 0.788192 0.000000 0.686188 0.820245 0.845973 
0.481323 0.646727 0.642697 0.601449 0.680033 0.686188 0.000000 0.891401 0.805195 
0.564312 0.671008 0.765357 0.777455 0.765329 0.820245 0.891401 0.000000 0.919729 
0.353693 0.559455 0.787765 0.793475 0.866637 0.845973 0.805195 0.919729 0.000000