通过精密观测(误差在1%以下)，能获得地震的前兆信息。
Through precise observations (the error of which should be smaller than 1%), it is possible for us to obtain precursory information of the earthquakes.
在这种情况下，各次地震的前兆场之间的相互叠加是不可避免的。
In this case, it is necessary that the precursor fields are formed by every earthquake to superpose mutually.
这次大地震的前兆与以往地震的和被预测到地震的前兆有很大的不同。
There were remarkable differences between precursor events of this particular earthquake and those of other predicted earthquakes.
到目前为止，任何所谓的地震前兆都远未达到这个准确率。
To date, no so-called quake precursor has achieved anything like that degree of reliability.
这么低的基础概率意味着，如果要让决策者下定决心，进行大规模人口疏散的话，任何地震前兆都必须极其可靠。
This very low base-rate means that any precursors of a quake would have to be incredibly reliable if decision-makers are to feel safe in using them to order mass evacuations.
粗略的计算显示，任何有价值的地震预测手段，其观测的地震前兆的准确率必须达到98%以上。
Rough estimates suggest that any useful quake forecast method demands precursors that will prove correct 98 per cent of the time.
地倾斜固体潮分析中根据固体潮汐的畸变、趋势、上升、下降、转折等变化特征，提取地震前兆异常信息。
The seismic precursor abnormal information extraction of tilt solid tide usually based on the distortion, tendency, elevation, fall, break and so on characteristics of solid tide.
在这样的框架下，在继续鼓励对地震前兆进行研究的国家经费很少。
In this framework, countries in which research on precursors is still encouraged and funded are very few.
该程序主要应用于电信传输地震台网的前兆观测系统中。
This program is mainly used in precursor observation system of telecommunication transmission earthquake stations.
故此，加卸载响应比可以被用做岩石破坏及地震预测的前兆。
So LURR can be used as the precursor of rock failure and earthquake prediction.
故地壳屈曲是地震前兆的力学基础之一。
Therefore crustal buckling is one of the mechanics basis of earthquake precursor.
该系统利用最新计算机图像处理技术及数理方法，能够从遥感图像中提取与地震有关的前兆信息。
This system USES the latest computer processing technique and mathematical statistics method to extract earthquake premonitions information from remote sensing image.
其计算结果表明：在几次地震前均有清楚的形变前兆显示。
The calculated result indicated that precursor deformation had been exhibited before some earthquakes.
说明地磁异常变化是一种有希望的地震前兆现象。
It indicated that the geomagnetic anomaly is a promising phenomenon in the studies of earthquake precursors.
文中所用的优化方法对于指导地震前兆观测台站的优化具有一定意义。
The method to optimize observatory distribution is very important to direct the optimization of earthquake precursory observatories.
探讨了识别地震前兆信息的新途径。
A new way to identify the earthquake precursor information is studied.
许多地震前兆的机理与地球深部流体相关。
The mechanism of many earthquake precursors is related to fluids deep inside the Earth.
构造解析是要对离散性的地震前兆进行构造时空复位。
Tectonic analysis makes discrete seismic precursor be restored in time and space.
这些结果表明该方法能够挖掘出丰富的地磁前兆信息，在地震前兆观测资料的非线性处理中具有良好的应用前景。
Those results indicate that the R/S analysis method can extract useful seismomagnetic precursor, and has potential and prospect in the nonlinear processing of seismic precursory observational data.
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.
本文概述了数字滤波和时间序列分析在地震前兆信息处理中的应用。
Application of digital filtering and time series analysis to earthquake precursory processing is summarized in this paper.
并讨论了地震前兆的某些特征。
Some characteristics of earthquake anomalies were discussed.
地震前兆数据采集器是数字化地震前兆台站的关键性设备之一，其指标、性能对前兆观测数据质量有重要影响。
The acquisition system of earthquake precursor data is one of the key devices for digital earthquake precursor station, its technical target and property have important influence on data quality.
该方法及思路也可为其他非地震前兆的可信度评估所借鉴。
The approach of the above evaluation method can also be applied to other non-earthquake precursors.
地震宏观前兆异常具有独特的映震特征，在地震预报过程中起到重要作用。
Earthquake macroscopic omen anomaly has particular reflecting earthquake traits, which plays an important role in earthquake forecast.
地震宏观前兆异常具有独特的映震特征，在地震预报过程中起到重要作用。
Earthquake macroscopic omen anomaly has particular reflecting earthquake traits, which plays an important role in earthquake forecast.
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