*Vertices 3
1 "中国兽医学报" 0.0 0.0 0.0 x_fact 2.824859 y_fact 39.548023
2 "中国草食动物" 0.0 0.0 0.0 x_fact 11.299435 y_fact 28.813559
3 "中国畜牧杂志" 0.0 0.0 0.0 x_fact 15.254237 y_fact 31.638418
*Matrix 
0.000000 0.286188 0.418001 
0.286188 0.000000 0.746196 
0.418001 0.746196 0.000000