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In space, people do not flush toilets, and urine and urine are sucked by equipment such as in special packaging bags, and some urine can be inhaled into special equipment and circulated and filtered back into drinking water.
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Astronauts use urine collectors similar to "diapers" when they go to the toilet, and there are two tubes on the machine to align the stool and urine organs respectively, which can forcefully suck away excrement and remove odors through the Lizheng deodorization device. >>>More