*Vertices 4
1 "灌溉排水学报" 0.0 0.0 0.0 x_fact 7.924528 y_fact 12.830189
2 "水利学报" 0.0 0.0 0.0 x_fact 2.515723 y_fact 19.748428
3 "中国农村水利水电" 0.0 0.0 0.0 x_fact 14.465409 y_fact 48.805031
4 "节水灌溉" 0.0 0.0 0.0 x_fact 11.069182 y_fact 18.616352
*Matrix 
0.000000 0.779202 0.383464 0.564322 
0.779202 0.000000 0.000000 0.209027 
0.383464 0.000000 0.000000 0.731358 
0.564322 0.209027 0.731358 0.000000