Proposing and using the concept of precursor field stability, the precursory observational data before moderate earthquakes on the boundaries of Henan, Sandong and Hebei are analyzed.
提出了前兆场稳定度的概念，利用前兆场稳定度的方法对中强地震前豫鲁冀交界区不同台站和不同手段的前兆观测数据进行分析。
We apply finite element method to invert the velocity field and strain field of crust motion in Urumqi region with GPS observational data since 2000.
利用2000年以来乌鲁木齐地区的GPS观测数据，通过讨论有限元数值计算方法，结合该地区实际情况，反演计算了该地区的地壳运动速度场、应变场。
The possibility and specific approach describing seismic precursory pattern with field feature using information dimension D_1 is discussed, and both observational and experimental data are processed.
本文讨论了信息维d_1用于描述具有场特征的地震前兆图象的可能性以及具体方法。
In order to make better use of all the data sources, it is urgent to set up the criterion on the metadata of national field observational stations.
为了更好地组织和利用这些数据，建立国家野外观测站元数据标准。
In order to make better use of all the data sources, it is urgent to set up the criterion on the metadata of national field observational stations.
为了更好地组织和利用这些数据，建立国家野外观测站元数据标准。
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