Two methods mentioned above were used to test the corresponding effect of 6 strong earthquakes thar had occurred in Ningxia and its adjacent area since 1980s, and some problems were discussed briefly.
应用以上两种方法对80年代以来宁夏及其邻区的六次中强地震作了对应效果检验，并对发现的问题作了简略探讨。
Two methods mentioned above were used to test the corresponding effect of 6 strong earthquakes thar had occurred in Ningxia and its adjacent area since 1980s, and some problems were discussed briefly.
应用以上两种方法对80年代以来宁夏及其邻区的六次中强地震作了对应效果检验，并对发现的问题作了简略探讨。
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