*Vertices 4
1 "机械传动" 0.0 0.0 0.0 x_fact 7.886435 y_fact 11.041009
2 "机械设计" 0.0 0.0 0.0 x_fact 11.671924 y_fact 21.135647
3 "机械工程学报" 0.0 0.0 0.0 x_fact 9.305994 y_fact 35.962145
4 "中国机械工程" 0.0 0.0 0.0 x_fact 6.151420 y_fact 31.861199
*Matrix 
0.000000 0.791323 0.720004 0.567877 
0.791323 0.000000 0.502490 0.585118 
0.720004 0.502490 0.000000 0.382115 
0.567877 0.585118 0.382115 0.000000