*Vertices 4
1 "化学学报" 0.0 0.0 0.0 x_fact 0.153139 y_fact 57.120980
2 "盐湖研究" 0.0 0.0 0.0 x_fact 7.350689 y_fact 12.098009
3 "海湖盐与化工" 0.0 0.0 0.0 x_fact 4.747320 y_fact 15.467075
4 "无机盐工业" 0.0 0.0 0.0 x_fact 1.225115 y_fact 15.313936
*Matrix 
0.000000 0.255685 0.000000 0.000000 
0.255685 0.000000 0.743614 0.299122 
0.000000 0.743614 0.000000 0.312862 
0.000000 0.299122 0.312862 0.000000