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Planting trees in arid area is of great help in the improvement of environment. However, due to the lack of water, the survival rate of saplings is very low.Inspired from dew in nature,we design a device combining with the structure of traditional fan,which can automatically collect dew to irrigate trees——Green spider.Temperature difference between day and night turns steam into spray,gathering together to flow into the roots of saplings for irrigation.This device has the advantage of low cost, easy operation and convenient transportation.
Dalian Minzu University