*Vertices 4
1 "机械工程学报" 0.0 0.0 0.0 x_fact 10.801394 y_fact 34.146341
2 "中国机械工程" 0.0 0.0 0.0 x_fact 10.627178 y_fact 41.811847
3 "振动工程学报" 0.0 0.0 0.0 x_fact 1.567944 y_fact 12.543554
4 "振动测试与诊断" 0.0 0.0 0.0 x_fact 2.787456 y_fact 11.498258
*Matrix 
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0.586518 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000