Mr Sparrow and Mr Zoshi, by contrast, reckon they can produce that much fresh water with less than 1 kWh of electricity, and no other paid-for source of power is needed.

相较于前两种方法，Sparrow和Zoshi估算他们可以用不到1千瓦时的电力，同时也不需要其他任何付费能源就能产出更多的饮用水。

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To reduce the other source of weight, the water, Dr Gura and his team designed disposable cartridges containing materials that capture toxins from the cleansing water, so that it can be recycled.

为了减少重量的另一大来源——水，古拉博士及其团队设计了内含可从净化水中俘获毒素的物质的一次性滤块，这使得净化水可被循环使用。

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Here in Siba, across the river from Abadan, the salt water is slowly destroying agriculture, the primary source of income other than oil.

来自阿巴丹岛的河水，流过斯巴，盐水正侵蚀破坏着当地的农业，农业是该地区的主要收入来源，而不是石油。

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"If you don't have a fountain in your garden, at least place a bird bath on the ground so rabbits and other creatures can have a water source, " she says.

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After all, if a major water source were removed, other sources would come under greater pressure.

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Caffeine is often used as a marker of wastewater contaminants, so that means there might be other pollutants in the water that also have a human source, Granek said.

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