IC卡预付费电能表
Per-Payment Walthour Meter With IC Card
预付费电能表
prepayment meter
pre-payment electricity meter
Pre-payment Watt-hour Meter
prepayment Watt-hour meter
the advance Watt-hour meter
advance-payment card wattmeter
预付费电能表管理
prepayment electricity meters
预付费售电系统
pre-payment vending system
prepayment vending system
无介质预付费
tokenless prepayment meter
预付电度计
prepayment watthour meter
预付费模式
the model type of prepayment