常見例句雙語例句With triplet-character method, the article discusses occurrence year of Xingtai earthquake with historical catalogue in north China.用三性法按華北歷史地震資料討論了邢臺大震的發(fā)生年份。Earthquake catalogue is one of the chief basic data in earthquake re search, as well as the important basis for earthquake prediction so far.地震目錄是目前地震研究的主要基礎(chǔ)資料之一,也是進行地震預(yù)報工作的重要依據(jù)。Based on current earthquake catalogue, b value and seismic yearly average occurrence ratio in North-east seismic zone are obtained with use of mathematical method in this paper.本文根據(jù)儅前的地震目錄,利用數(shù)理統(tǒng)計的方法給出了東北地震區(qū)的b值和地震的年平均發(fā)生率。 返回 earthquake catalogue