*Vertices 4
1 "振动与冲击" 0.0 0.0 0.0 x_fact 1.101073 y_fact 5.844156
2 "中国电机工程学报" 0.0 0.0 0.0 x_fact 0.367024 y_fact 90.965556
3 "振动工程学报" 0.0 0.0 0.0 x_fact 0.479955 y_fact 1.581028
4 "振动测试与诊断" 0.0 0.0 0.0 x_fact 0.508187 y_fact 1.609260
*Matrix 
0.000000 0.000000 0.468265 0.207954 
0.000000 0.000000 0.000000 0.000000 
0.468265 0.000000 0.000000 0.305500 
0.207954 0.000000 0.305500 0.000000