But it will take decades to introduce a system of tradable water rights, let alone market pricing, in most poor countries.
但引进一个可交易的水权利需要几十年，别说在大多数贫困国家进行市场定价。
Economical water pricing is a system to protect and utilize water resource, and improve the efficiency of utilizing water resource in the aspects of production, construction and consumption.
节约型水价就是要在供水生产、建设、消费的各个方面，切实保护和合理利用水资源、提高水资源利用效率的价格体系。
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