*Vertices 7
1 "给水排水" 0.0 0.0 0.0 x_fact 14.389009 y_fact 25.524223
2 "中国给水排水" 0.0 0.0 0.0 x_fact 6.652205 y_fact 16.847433
3 "中国环境科学" 0.0 0.0 0.0 x_fact 4.772234 y_fact 9.906001
4 "环境科学" 0.0 0.0 0.0 x_fact 7.881417 y_fact 15.835141
5 "上海环境科学" 0.0 0.0 0.0 x_fact 1.590745 y_fact 2.530730
6 "环境污染治理技术与设备" 0.0 0.0 0.0 x_fact 12.509038 y_fact 16.485900
7 "净水技术" 0.0 0.0 0.0 x_fact 12.292119 y_fact 12.870571
*Matrix 
0.000000 0.853731 0.226792 0.286809 0.701017 0.633810 0.912729 
0.853731 0.000000 0.218195 0.294714 0.639180 0.652276 0.844283 
0.226792 0.218195 0.000000 0.789457 0.238054 0.621401 0.478990 
0.286809 0.294714 0.789457 0.000000 0.366728 0.793794 0.563658 
0.701017 0.639180 0.238054 0.366728 0.000000 0.646092 0.811257 
0.633810 0.652276 0.621401 0.793794 0.646092 0.000000 0.865475 
0.912729 0.844283 0.478990 0.563658 0.811257 0.865475 0.000000