Nationwide , China's available water supply per person is one - fourth the world average.

中国全国的人均可用水供应量仅为世界平均水平的四分之一.

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Available water sources must be protected from pollution and contamination at once.

对可用水源必须立刻加以保护,以免受到污染.

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The colour of the available water soluble inks, can also be used in organic solvent inks.

底色可用水溶性油不朱, 也可用无机溶剂油不朱.

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Construction and management of ground water reservoir is an effective way of increasing available water resources.

合理建设和管理地下水库是我国北方缺水地区增加水资源可利用量的有效途径.

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