By using the generalized characteristics method, the compatibility equations on the characteristics are obtained. And the wave propagation of the finite length cylindrical shell is analyzed.
应用广义特征线理论得到了沿特征线上的相容方程，并采用数值积分方法分析了有限长圆柱壳的波传问题。
According to the characteristics of data collection, generalized least squares method was used to calibrate model.
根据采集数据的特点，采用广义最小二乘法标定模型。
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