*Vertices 4
1 "制造技术与机床" 0.0 0.0 0.0 x_fact 6.873977 y_fact 10.147300
2 "机械工程学报" 0.0 0.0 0.0 x_fact 8.510638 y_fact 36.170213
3 "中国机械工程" 0.0 0.0 0.0 x_fact 6.382979 y_fact 33.060556
4 "工具技术" 0.0 0.0 0.0 x_fact 10.638298 y_fact 20.621931
*Matrix 
0.000000 0.488349 0.801847 0.615288 
0.488349 0.000000 0.380302 0.466478 
0.801847 0.380302 0.000000 0.341673 
0.615288 0.466478 0.341673 0.000000