问题的公式考虑图1的情况,即在 M 层大地中,埋藏有一任意形状的三维不均匀矿体.一个供电电极放置于地表(?点上,问题是供入稳定电流时,要计算出任意点(?)的电位值.在我们的计算中,始终采用球坐际系.带有“′”的量代表源点位置,而不带“′”的量代表场点位置.矿体 The formula for the problem takes into account the situation shown in Fig. 1 in which a three-dimensional heterogeneous ore body of arbitrary shape is buried in the M-layer earth.A power supply electrode is placed on the ground (point?), The problem is that when a stable current is supplied, The potential value of the point (?). In our calculations, the ball system is always used. The amount with “” represents the source position, and the amount without the “” represents the field position. Ore body