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本文介绍了兰州形变台水管倾斜仪和石英伸缩仪1987年初至1990年底观测资料的调和分析结果和各分量的年变化,分析了M_2波γ和α因子的月重复精度及其对非潮汐变化的监测能力和本区当前的构造活动特征,对异常变化与1990年10月20日甘肃景泰Ms6.2级地震之关系作了初步探讨。
This paper introduces the harmonic analysis results and the annual variations of the observed data from 1987 to 1990 at the Lanzhou Deformation Aqueduct Inclinometer and Quartz Telescopic Instrument, and analyzes the monthly repeatability of γ and α factors of M_2 waves and their effects on non-tidal changes Monitoring capability and current tectonic activities in this area, the relationship between abnormal changes and the Jingtai Ms6.2 earthquake on October 20, 1990 in Gansu Province was discussed.