地震前兆研究包括前兆观测、前兆资料分析处理、前兆综合研究与前 兆检验等四个基本环节。 首先,改进与加强观测工作始终是前兆研究的基础。除许多同志提到的引进新技术,实现自动化、数字化、进一步精确化等目标外,我认为还应注意以下两个问题。第一是必 Earthquake precursors include four basic aspects: precursor observation, precursor data analysis and processing, precursory comprehensive study and precursor inspection. First, improving and enhancing observational work has always been the foundation of precursor research. In addition to the goals introduced by many comrades in introducing new technologies, realizing automation, digitization and further precision, I think the following two issues should be noted. The first is necessary