我国的钻孔应力-应变地震前兆监测网，是全国地震前兆监测台网的一个组成部分。
The seismological networks for borehole stress strain precursor surveilance in China are a part of the national seismological networks for precursor surveilance.
由专业地震台站和宏观观测网点组成的地震前兆监测台网对北京地区的地震预报发挥了很大的作用。
The professional monitoring stations and macro-observation networks have played important roles in predicting earthquakes in the Beijing area.
通过长期监测地下水中水化学成分的变化，就有可能为预测预报地震提供一种新的前兆信息。
Through long-term monitoring of the change of the chemical composition of groundwater, a new kind of premonitory information for earthquake prediction may be provided.
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