(一)简单的介绍虽然我们没有把人为的电流输送到地下去,地球表面仍然有着自己的电流。这种电流统称为地电。产生地电的原因有很多,有些我们已经明白,有些直到现在还是不能了解。按照地电的性质来说,有些电场是稳定的,就是说它的电位达到平衡后,便不随时间 (A) a brief introduction Although we did not send the artificial current to the ground, the Earth’s surface still has its own current. This current is collectively referred to as geoelectricity. There are many reasons for generating geoelectric electricity. Some of us have come to understand that some still do not understand it until now. According to the nature of the geoelectric field, some electric fields are stable, that is, when its potential reaches equilibrium, it will not change over time