*Vertices 3
1 "中国农业科学" 0.0 0.0 0.0 x_fact 15.463918 y_fact 41.340206
2 "作物学报" 0.0 0.0 0.0 x_fact 13.195876 y_fact 42.371134
3 "种子" 0.0 0.0 0.0 x_fact 11.546392 y_fact 16.288660
*Matrix 
0.000000 0.814349 0.763007 
0.814349 0.000000 0.869165 
0.763007 0.869165 0.000000