Some people say step pricing can be used to protect a basic water allowance for drinking, cooking and washing.

有些人说阶梯式定价可用来保护用于饮用、做饭和洗濯的基本用水补贴。

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They range from protection of the environment and global warming to fair pricing of water services and equitable distribution of water for irrigation, industry and household use.

它们涉及的领域从环境保护、全球变暖到水服务的公平定价以及灌溉、工业和家庭用水的公平分配。

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Technology such as electronic sensors and controls would permit variable pricing for power and finely-tuned measures of water consumption.

电子传感器和控制器等技术可对电力进行可变定价，对用水消耗量进行精确计量。

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Other developing countries also face problems with inequitable pricing and raw water shortages - which is what really keeps communities from having clean,piped water.

VOA: standard.2010.08.04

That idea is especially attractive when other forms of rationing a carbon tax, water pricing are struggling.

ECONOMIST: World population: Now we are seven billion | The

One way to control water usage would be a rational pricing policy.

ECONOMIST: China

Facebook's final pricing comes amid recent financial disclosures that threw some cold water on the ballyhooed IPO.

WSJ: Facebook Prices Its IPO at $38