*Vertices 5
1 "给水排水" 0.0 0.0 0.0 x_fact 8.924731 y_fact 20.537634
2 "中国给水排水" 0.0 0.0 0.0 x_fact 10.430108 y_fact 22.903226
3 "工业水处理" 0.0 0.0 0.0 x_fact 21.075269 y_fact 35.376344
4 "水处理技术" 0.0 0.0 0.0 x_fact 2.258065 y_fact 6.344086
5 "城市环境与城市生态" 0.0 0.0 0.0 x_fact 7.741935 y_fact 14.838710
*Matrix 
0.000000 0.852725 0.522064 0.000000 0.603378 
0.852725 0.000000 0.578418 0.000000 0.592340 
0.522064 0.578418 0.000000 0.667889 0.395981 
0.000000 0.000000 0.667889 0.000000 0.000000 
0.603378 0.592340 0.395981 0.000000 0.000000