*Vertices 3
1 "中国寄生虫学与寄生虫病杂志" 0.0 0.0 0.0 x_fact 11.065574 y_fact 25.000000
2 "中国人兽共患病杂志" 0.0 0.0 0.0 x_fact 13.114754 y_fact 39.959016
3 "中国寄生虫病防治杂志" 0.0 0.0 0.0 x_fact 27.868852 y_fact 35.040984
*Matrix 
0.000000 0.762853 0.984354 
0.762853 0.000000 0.817793 
0.984354 0.817793 0.000000