A water tariff structure with step-wise increase or decrease of the price per unit water from one block to the next.
一种水价结构,水的单价从一个水量段到下一个水量段逐步增加或者减少。
A water tariff structure with step-wise increase or decrease of the price per unit water from one block to the next.
一种水价结构,水的单价从一个水量段到下一个水量段逐步增加或者减少。
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