3 可能的非双力偶地震过程 3.1 包含有效力的过程 3.1.1 物理原理大多数震源机制的实验研究从思考中预先排除了有效力和扭矩,如1.2.2节讨论过的,物理定律不要求这种限制。对于内源这种有效力是可能的,因为动量可在源区和地球其余部分之间转移。但是,如 3 Possible Non-Dual-Coupled Seismic Processes 3.1 Processes Involving Efforts 3.1.1 Physical Principles Experimental investigations of most focal mechanisms have previously precluded effective forces and torques from consideration, as the laws of physics do not require This limitation. It is possible for the internal source to be effective because the momentum can be transferred between the source region and the rest of the earth. However,