The main characteristics of seismic source function in underground explosion are studied by seismological method and numerical method.
结合地震反演方法和数值计算方法，研究了地下爆炸震源函数的特征以及介质特性对震源函数的影响。
This estimation relied on seismological techniques measuring the first seismic waves recorded, a method that lends itself to underestimation when a quake exceeds a magnitude of 8.5.
这项估算的依据是用地震技术测量记录到的第一批地震波，这种方法在地震超过8.5级时会造成估算不足。
An artificial random disturbance is carried out for some seismological observation data in the allowance range of seismological observational error with random disturbance method.
采用随机干扰方法，在地震观测误差容许值范围内，对地震观测资料进行人为随机干扰。
The principle, feature and adjusting method of four applied electric circuit are introduced by practical questions in the seismological and magnetic observation.
以测震和地磁在工作中遇到的实际问题为例，介绍了四例应用电路的原理、特点和调试方法。
The principle, feature and adjusting method of four applied electric circuit are introduced by practical questions in the seismological and magnetic observation.
以测震和地磁在工作中遇到的实际问题为例，介绍了四例应用电路的原理、特点和调试方法。
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