tiered pricing for electricity
... 交通拥堵费 congestion fee 生殖健康 reproductive health 阶梯电价 tiered pricing for electricity ...
step tariff
阶梯电价(step tariff) 针对不同阶梯电量值制定的单位电价。 国家电网公司智能电能表系列宣贯材料技术规范条文解释。
progressive pricing for household electricity consumption