一、对震源电场 的初步认识 在地壳运动的过程中。地壳的不同部位受到挤压、拉伸、旋扭等力的作用。当物体受到外力的时候,在它的内部同时产生了一个与此外力相对抗以保持平衡的力,称它为内力。单位面积上的内力称为应力。地应力就是地壳中岩石的应力。由于地壳中岩石受到地应力的作用,在某些部位,例如大断裂带的两端、拐弯、分叉和交汇部位以及断陷盆地的地方,形成一些孕震体。 First, the initial understanding of the source electric field in the crustal movement in the process. Different parts of the crust are squeezed, stretched, twist and other forces. When an object receives an external force, it simultaneously creates a force in its interior that opposes the external force to balance it, calling it an internal force. The internal force per unit area is called stress. Earth stress is the stress of the rock in the crust. Because of the geostress of the rock in the crust, some seismogenic bodies are formed in some areas, such as at both ends of large faults, turns, bifurcations and intersections, and in fault basins.