closed circuit television equipment

英 美
  • 闭路电视设备
  • circuit n.巡回;线路;环形;电路;回路v.巡回;绕...环形
  • closed adj.关闭的;封闭的;停业的动词close的过去式和过去分词.
  • equipment n.设备;装备;器材
  • television n.电视机;电视节目;电视行业