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In recent years, natural disasters is happening frequent. When the natural disasters was happening, the external aid cant reached to rescue in the first time. There might be no food, Water and electricity. Although the bad situation, we still can easily to use water in our side, such as groundwater, rainwater, river water, seawater or even sediment. On the first steps, take a bag from the cylinder, it can reduced the time to find the others bag, and also can reduced the strength. Than we can keep the clean water, and provide people immediately who need the complement to survival.
National Yunlin University of
YONG-HUA, HUANG HE-XUAN, LIN