Serials of naphthalin and tripolycyanamide have low water reducing efficiency.

萘系与三聚氰胺系减水率较低。

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The result shows this low slump loss superplasticizer features in easy action property, high water reducing rate, and good performance of concrete, etc.

结果表明：该产品减水剂具有优良的工作性能、高减水性、混凝土性能等特性。

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It has high water reducing rate at low dosage whether the adaptability problem with cement and high slump loss are always the point in concrete production.

它具有掺量低、减水率高的优点，但与水泥适应性较差和坍落度损失大一直是混凝土生产上的难题。

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The group has simpler ideas -- like reducing water use at schools and other buildings in Israel, Jordan and the Palestinian territories.

VOA: special.2009.05.18

Separating our water supply from sewage and learning how to do wastewater treatment was a really important part of reducing infectious diseases.

把净水和污水分开,以及学会污水处理的方法,是减少感染性疾病传播方法中的重要部分

耶鲁公开课 - 生物医学工程探索课程节选

South West Water said reducing the impact of storms on sewers and drains was not simple or without cost.

BBC: Modbury raw sewage complaint after rain

In the context of hospitals, the heat is usually used to provide hot water, reducing the need to operate less efficient boilers.

FORBES: Heal Thy Self: U.S. Hospitals Are Huge Energy Hogs

Other costs are the impact on the lives of women and girls who spend several hours every day carrying heavy loads of water thus reducing the time women have available for growing food, working to earn an income or take care of children, and preventing girls from attending school.

FORBES: CEO of WaterAid America David Winder Calls For More Public Education On Water Issues