*Vertices 2
1 "中华劳动卫生职业病杂志" 0.0 0.0 0.0 x_fact 0.892857 y_fact 41.964286
2 "环境与职业医学" 0.0 0.0 0.0 x_fact 34.821429 y_fact 58.035714
*Matrix 
0.000000 0.843910 
0.843910 0.000000