*Vertices 5
1 "环境化学" 0.0 0.0 0.0 x_fact 5.980066 y_fact 7.973422
2 "中国环境科学" 0.0 0.0 0.0 x_fact 11.794020 y_fact 19.269103
3 "环境科学研究" 0.0 0.0 0.0 x_fact 15.448505 y_fact 19.102990
4 "环境科学学报" 0.0 0.0 0.0 x_fact 12.126246 y_fact 21.096346
5 "环境科学" 0.0 0.0 0.0 x_fact 18.106312 y_fact 32.558140
*Matrix 
0.000000 0.869965 0.882364 0.843722 0.934703 
0.869965 0.000000 0.920681 0.820057 0.821901 
0.882364 0.920681 0.000000 0.843905 0.878513 
0.843722 0.820057 0.843905 0.000000 0.787843 
0.934703 0.821901 0.878513 0.787843 0.000000