40 2d(2D) refined finite element numerical model of the Suzhou urban site was established. The model has a length of 40 km, a depth of40:E8:41:9E:70:79:9D:2B:0A:0F:2C:1D:80:69:31:65:F7:CE:C4:AD:75. Demo Sites 2D:93:29:75:E8:4D:CE:4C:5E:79:45:42:C6:57:4C:3A:A4. DiCert Client