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。
The paper presents a coordinate perturbation method to deal with the pro -. Blem of a plane blast wave propagation in nonlinear hysteretic media.
二维定位模式，只有平面的座标。必需至少取得三个卫星的资料。
A two-dimensional position fix that includes only horizontal coordinates. It requires a minimum of three visible satellites.
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