*Vertices 8
1 "机械传动" 0.0 0.0 0.0 x_fact 3.164942 y_fact 4.808278
2 "机械设计" 0.0 0.0 0.0 x_fact 8.277541 y_fact 11.625076
3 "机械科学与技术" 0.0 0.0 0.0 x_fact 13.024954 y_fact 18.502739
4 "机械工程学报" 0.0 0.0 0.0 x_fact 6.512477 y_fact 14.668290
5 "机械设计与研究" 0.0 0.0 0.0 x_fact 11.807669 y_fact 15.155204
6 "中国机械工程" 0.0 0.0 0.0 x_fact 7.364577 y_fact 18.259282
7 "机器人" 0.0 0.0 0.0 x_fact 0.852100 y_fact 5.721242
8 "上海交通大学学报" 0.0 0.0 0.0 x_fact 1.886792 y_fact 11.259890
*Matrix 
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0.652326 0.000000 0.807846 0.569721 0.858314 0.645417 0.000000 0.000000 
0.662257 0.807846 0.000000 0.734812 0.862240 0.672873 0.252278 0.000000 
0.622854 0.569721 0.734812 0.000000 0.688611 0.597699 0.000000 0.000000 
0.683056 0.858314 0.862240 0.688611 0.000000 0.617782 0.224539 0.225880 
0.487307 0.645417 0.672873 0.597699 0.617782 0.000000 0.000000 0.000000 
0.000000 0.000000 0.252278 0.000000 0.224539 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.225880 0.000000 0.000000 0.000000