For multi-water resources supply, a simulation allocation model based on rules is adopted to make optimal water intake scheme by analyzing water supply structures and user's water shortage.

针对多水源联合供水，采用基于规则的水资源配置模拟方法，得到了不同取水方案下各水源供水结构、用水户缺水结构，提出用水户合理取水方案；

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Wealth depends to a great extent upon a country's natural resources, such as coal, gold, and other minerals, water supply and so on.

一国财富在很大程度上受其自然资源影响，比如：煤炭、黄金或其他矿物质、水源等等。

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In order to raise the efficiency of the water supply, measures should be taken to centralize the management of water resources.

为提高供水效率，应采取集中管理水资源的措施。

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Buried in the "Miscellaneous" provisions of the Act is a far reaching power given to the Secretary of State to intervene should the Assembly or Ministers do anything that might have "a serious adverse impact" on water resources, supply or quality in England.

BBC: Highly politicised liquid assets

Not surprisingly, the countries are wealthy and among the world's greenest as well, according to the Environmental Performance Index, a joint product of Columbia University and Yale University, which measures performance against 25 indicators, such as measures of air pollution, water supply or use of natural resources.

FORBES: The Most Energy-Efficient Countries

The fact is, three-fourths of the water Angelenos drink every day comes from miles away, and Connecticut-based Poseidon Resources is betting one day this already limited supply of water will be scarcer and more valuable.

NPR: California Town Votes on Huge Desalinization Plant