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the useage of the urine in outer space, for long distance space travlling. there are several ways in the article. first, the old-Russia way, is . the second is producing electric, and how the process is going on is introduced in the article, the estra small amount of the o. the third is to reuse the urine, turn it into completely safty wate.the order howt the describe the methods i forget. hope can remember more. |
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