*Vertices 3
1 "给水排水" 0.0 0.0 0.0 x_fact 23.148148 y_fact 46.913580
2 "中国给水排水" 0.0 0.0 0.0 x_fact 10.185185 y_fact 31.944444
3 "环境科学" 0.0 0.0 0.0 x_fact 4.166667 y_fact 21.141975
*Matrix 
0.000000 0.853380 0.260320 
0.853380 0.000000 0.291240 
0.260320 0.291240 0.000000