*Vertices 7
1 "给水排水" 0.0 0.0 0.0 x_fact 6.366048 y_fact 15.915119
2 "中国给水排水" 0.0 0.0 0.0 x_fact 12.466844 y_fact 22.723254
3 "中国环境科学" 0.0 0.0 0.0 x_fact 4.067197 y_fact 8.045977
4 "环境科学" 0.0 0.0 0.0 x_fact 7.250221 y_fact 14.942529
5 "环境工程" 0.0 0.0 0.0 x_fact 8.930150 y_fact 12.201592
6 "上海环境科学" 0.0 0.0 0.0 x_fact 12.732095 y_fact 18.479222
7 "环境污染与防治" 0.0 0.0 0.0 x_fact 7.250221 y_fact 7.692308
*Matrix 
0.000000 0.843530 0.000000 0.228620 0.571792 0.499046 0.618062 
0.843530 0.000000 0.281744 0.427907 0.702603 0.650463 0.696102 
0.000000 0.281744 0.000000 0.780770 0.455768 0.569428 0.715139 
0.228620 0.427907 0.780770 0.000000 0.602870 0.632823 0.814550 
0.571792 0.702603 0.455768 0.602870 0.000000 0.719016 0.856932 
0.499046 0.650463 0.569428 0.632823 0.719016 0.000000 0.884928 
0.618062 0.696102 0.715139 0.814550 0.856932 0.884928 0.000000