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The backward countries usually lack of the swimming education, major reason is lack of the swimming facilities in the school, cause the swimming education is hard to implement. "PURIFY WATER CANVAS “has overcome this environmental limitation, just need to drill a muddy water hole on the ground , install the strainer net of" CANVAS" on the water surface, put the weight to pressure on the strainer net , after the "CANVAS" sink to the bottom surface of the hole, the muddy water will be filtered into clean water, the hole will become a simple and cleaning swimming pool facility for the children.
National Taiwan University of
Science and Technology
National Taiwan University of Science and Technology