广播电视导示牌，是遵循广播电视宣传规律，总结广播电视发展经验，阐述广播电视工作诸多关系的工具。导示牌说明，搞好广播电视工作要抓好五个层次。这五个层次，既有中心，有边缘，有主次，有轻重，有先后；又有内在联系，相互依托，相得益彰。熟悉和运用好导示牌，对搞好广 Radio and television signs are follow the radio and television law of propaganda, summarize the experience of the development of radio and television, radio and television work on many relationships between tools. The instructions on the signboard show that we must do a good job at five levels in radio and television work. These five levels have the center, the edge, the priority, the severity, and the order of precedence. And they have internal relations and rely on each other to complement each other. Familiar with the use of good signs, to do a good job wide