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The large public facility-- G-Drinker is aimed at solving catchment and cooling the water in arid regions. According to the physiological principle of the beetle surviving in the desert,and the characteristic of large temperature difference between day and night in arid regions, G-Drinker uses metal material to absorb moisture from the air at night.Then G-Drinker stores solar energy and uses energy to cool the water during the day. In addition, G-Drinker Can also provide night lighting and rest for some people in need.