inlet perturbation wave 进口扰动波
perturbation theory without wave-function 无波函数微扰论
Make perturbation, in terms of these errors, to revise wave impedance mod-el until the errors reduce to minimum.
根据此误差，再作摄动，修改波阻抗模型，直到误差趋于最小为止。
The paper presents a coordinate perturbation method to deal with the pro -. Blem of a plane blast wave propagation in nonlinear hysteretic media.
本文利用座标摄动方法研究平面爆炸波在非线性磁滞介质中的传播问题。
In the experiments, a small-amplitude sine wave of displacement is modulated to shear loading to study the effects of shear stress perturbation on stick-slip instability.
实验中通过在剪切方向上叠加正弦波状的位移扰动，研究了剪应力扰动对断层粘滑失稳的影响。
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