改革开放以来特别是近几年，城市电视台技术工作同其它事业一样乘势而上快速向前发展，取得了长足进步。技术工作是电视台运行的基础和保障，各电视台已越来越认识到，技术实力是综合自力的核心，因而纷纷加强对技术的支持与投人，购置大量新设备或者对原有设备实行技术改造， Since the reform and opening up, especially in recent years, the technical work of urban television stations has enjoyed rapid progress along the lines of other undertakings and has made great strides. Technical work is the basis and guarantee for the operation of a television station. The television stations have increasingly realized that the technical strength is the core of self-reliance. Therefore, they have both stepped up their support and investment in technology, purchased large quantities of new equipment, or implemented technological transformations on existing equipment ,