阶梯式水价
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其中城市自来水价和污水处理收费实行3级阶梯式累进加价，针对不同用户制定不同水费标准，并对低收入群体实行减免政策。
3-step cumulative mark-on was adopted for the tap water price and sewage water price, and the standards were different owing to different water users.
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