plan position indicator repeater

例句：

1. 1. The plan position indicator repeater is used to monitor the location ofa device in real-time.
   计划位置指示器重复器用于实时监测设备的位置。
2. 2.The repeater was designed to overcome thelimitations of traditional repeaters.
   重复器被设计来克服传统重复器的局限性。
3. 3. The repeater was used to transmit signals over longdistances without interference.
   重复器被用来在长距离上传输信号，而不受干扰。