This paper analyzes the quasi static current field boundary value problem in inhomogeneous media with a borehole.

在这篇文章中，分析了一个具有井眼的非均匀介质中似稳电流场的边值问题。

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Based on analysis of the field tests data, crushing ice forces on vertical structures are classified into three modes: quasi static ice force, steady state dynamic ice force and stochastic ice force.

根据原型结构实测数据的分析，本文把直立结构的挤压冰荷载分为三种不同的模式：准静态冰力、稳态交变冰力以及随机交变冰力。

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The three methods are as follows: using magnetic permeability under coordinate's transition to get the components of magnetic field in the quasi-static approximation;

三种方法分别为：利用坐标变换后的磁导率，在准静态近似下求得磁场分量；

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