Aiming at the general urban water supply sources, an optimizing operation model is established.

针对一般城市供水水源，建立了优化调度模型。

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Methods From 1991 to 1998, monitoring and evaluation were done in 71 water supply sources in 6 counties.

方法1991 ~ 1998年对全省6个县共71个供水点水质进行了监测和评价。

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Meanwhile, debris that finds its way into waterways can damage animal habitats and water supply sources.

与此同时，那些进入水道的碎片会破坏动物的栖息地和水源。

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The shifting of the river and lack of other sources of water supply with consequent loss of vegetation has worsened the site conditions.

UNESCO: CULTURE

Ministers say they will also do more encourage water companies to find new sources of supply to try to reduce the impact of future droughts.

BBC: Queen's Speech: Meters 'missing from water bill'

Surface water sources, such as reservoirs and rivers, provide about 90% of the region's water supply.

BBC: South West Water says no summer hosepipe ban