... spheroidal tank 扁球形油罐 spontaneous-potential well logging 自发电位测井 spot sample 局部试样 ...
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We get that the direct problem of spontaneous potential well-logging is an elliptical boundary value problem with jumping condition on the interface.
得到了自然电位测井正问题是一个在交界面上有跳跃的椭圆边界值问题。
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