If increased agricultural productivity is necessary, so, too, is improved water management.

如果说提高农业生产率是必要的，那么，改善水资源管理也是不可或缺的。

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We knowenough now about the importance of improved water supply, sanitation, andhygiene ...

关于改善水供应、卫生设施和卫生的重要性现在我们知道的够多了…

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More than 1.3 billion people gained access to an improved water supply or better sanitation.

超过13亿人得到了改善过的水和更好的医疗条件。

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Bringing more water to Jakarta will require investment in new and improved infrastructure.

VOA: standard.2010.08.04

Mr Turner said the council had also built a 1m high dam near the culvert, which had improved water flow through the area.

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The IP65 certification provides improved water and dust resistance, enabling field workers to maintain their productivity in challenging scenarios, such as sand storms and heavy rain.

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Projects include new pipes, better reservoirs, improved water testing to meet higher standards, improved waste treatment and the need to protect sewers from the effects of flooding.

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