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People can 17 days without eating, but 48 hours without water can result in death, showing people the importance of water. And in which the proportion of the Earth's water is 97 percent water, but only 3% of the fresh water.
People in the ocean shipwreck occurred among deaths due to lack of water is not a minority, but they can not drink the water in front, is so extraordinarily sarcastic thing.
So we shipped this system. A tube connected, when people straw to drink water, use of the reverse osmosis principle, let the water through a semipermeable membrane, filtration of seawater into the composition, so that people can inhale s