*Vertices 3
1 "植物生理学通讯" 0.0 0.0 0.0 x_fact 2.750491 y_fact 19.449902
2 "中国农业科学" 0.0 0.0 0.0 x_fact 12.770138 y_fact 57.170923
3 "植物病理学报" 0.0 0.0 0.0 x_fact 6.679764 y_fact 23.379175
*Matrix 
0.000000 0.269220 0.249409 
0.269220 0.000000 0.349948 
0.249409 0.349948 0.000000