763长周期地震观测技术交流会于1987年7月10日至17日在大连市召开。国家地震局科技监测司孙其政、修济刚、地球物理研究所曲克信、辽宁省地震局徐心同和大连市科委、大连市地办以及763台网台站代表共52人参加了会议。在会上,孙其政回顾了763长周期地震观测台网的建设过程,强调了763长周期地震观测台网的地位和作用。他说,763台网的建成,填补了我国地震台网长周期观测频段的空白,从而使我国模拟地震台网的观测频段从短周期到 763 long-period seismic observation technology exchange was held on July 10, 1987 to July 17 in Dalian. State Seismological Bureau Science and Technology Monitoring Division Sun Qizheng, Xiuji Gang, Institute of Geophysics Qu Xixin, Xu Xin Tong of Liaoning Province Seismological Bureau and the Dalian Municipal Science and Technology Commission, Dalian City Office and 763 stations representing a total of 52 people attended the meeting. At the meeting, Sun Qizheng reviewed the construction process of the 763 long-period seismic observation network and emphasized the status and role of the 763 long-period seismic observation network. He said that the completion of 763 nets has filled the blank of the long-period observation frequency band of China’s seismic nets so that the observed frequency band of China’s analog seismic network will be shortened from short period to