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地应力测量是地震前兆测量物段之一。 作为地震前兆讯息的地应力测量,是地应力相对测量。它和绝对测量有两点大的区别: 1.被测对象的讯息量很微弱; 2.是定点长期观测,对它的稳定性要求高。
In-situ stress measurement is one of the sections of earthquake precursors. In-situ stress measurements as a precursor to earthquake data are relative measures of in-situ stress. There are two big differences between it and absolute measurement: 1. The amount of information of the measured object is very weak; 2. It is long-term observation of the fixed point, demanding of its stability.