The earthquakeperiod model in middle Bohai Sea and Jiaoliao channel is analyzed based on history earthquake data.
根据历史地震资料,分析了渤海中部与胶辽海峡的地震周期模式。
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In America, a regulator would presumablyneed to determine the period of commercial value: perhaps two hours for news ofan earthquake, 30 minutes for sports results.