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长期以来,地震工作者在寻求计算地应变的方法以及地应变与地震的关系方面作了不少的努力。耶格提出了由边长变化计算各应变元素的公式(1)～(4)。这是利用复测区内压应变方位与断裂走向构成的力学模型来判断断裂的错动方式及其破裂的方位。弗兰克通过
For a long time, earthquake workers have made a lot of efforts in seeking ways to calculate geostress and the relationship between geostress and earthquakes. Jaeger proposed the formula (1) ~ (4) for calculating each strain element from the change of side length. This is to make use of the mechanical model formed by the direction of compressive strain and the direction of fracture in the retest area to judge the fault dislocation and the fracture orientation. Frank passed