The assignments of the weight parameters in raw water quality assessment are very important to the rationality of the result.

在水源水质评价中，权值的确定对评价结果的合理性至关重要。

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Biological pretreatment technology is an economic and efficient method to remove ammonia - nitrogen in micro - polluted raw water.

生物预处理是去除微污染源水中氨氮的一种经济有效的方法。

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Especially our reclaim technology allows customers to save raw water of up to 80%, which in turn lowers the operating cost and greatly improves the environmental conditions.

特别指出的是，我们的回收水技术能让客户节省高达80%的原水消耗，从而相应地降低了运营成本，并大大改善了环境条件。

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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

"The main issue is we don't have enough raw water for Jakarta.

VOA: standard.2010.08.04

Some European regulations will have to be altered in order to ensure the efficient use of energy, water and raw materials, and to protect the natural environment.

FORBES: Sad Stupidity at the European Commission

Companies that escaped damage from the earthquake and ensuing tsunamihave to cope with rolling power outages and disruptions to supplies of water, raw materials and transportation, suggesting the road to reconstruction could be long and halting.

WSJ: Firms in Japan Assess Quake Damage

But unlike other alternative energy sources, such as sun or wind power, there's nothing fickle about the availability of the key raw ingredients--fresh water and sea water.

FORBES: Getting Power From Salty Water