求翻译：县级配电网是全面建设小康社会、进行城镇化建设、统筹城乡社会经济发展的一项重要基础设施，其规划相关内容应纳入当地社会经济发展总体规划。是什么意思？

The county-level distribution network is an important infrastructure of building a moderately prosperous society, urbanization, urban and rural social and economic development planning should be incorporated into the local socio-economic development master plan.