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Amachinethattakessweat-laden(浸满汗水的)clothesandturnsthesweatintodrinkingwaterisinuseinSweden.Themachinemakestheclothesturnroundquicklyheatsthemtoremovethesweatandthenpassesthesteamthroughakindof
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Amachinethattakessweat-laden(浸满汗水的)clothesandturnsthesweatintodrinkingwaterisinuseinSweden.Themachinemakestheclothesturnroundquicklyheatsthemtoremovethesweatandthenpassesthesteamthroughakindofspecialmaterialtomakepurifiedwater(净化水).

Sinceithasbeenbroughtintouseitscreatorssaymorethan1000peoplehavedrunkothers’“sweat”inGothenburg.Theyaddtheliquidiscleanerthanlocaltapwater.

ThedevicewasbuiltfortheUnitedNations’child-focusedcharityUNICEFtopromoteacampaignhighlightingthefactthat780millionpeopleintheworldlackaccesstocleanwater.

ThemachinewasdesignedandbuiltbytheengineerAndreasHammarknownlocallyforhisappearancesonTVtechshow“Mekatronik”.HesaidthekeypartofthesweatmachinewasanewwaterpurificationpartdevelopedbyacompanynamedHVR.

“Itusesatechniquecalledmembranedistillation(膜蒸馏)”hetoldtheBBC.“Weuseaspecialkindofmaterialthatonlyletssteamthroughbutkeepsbacteriasaltsclothingfibersandotherthingsout.TheyhavesomethingsimilartotheInternationalSpaceStationbutourmachineischeapertobuild.Theamountofwateritproducesdependsonhowsweatythepersonisbutoneperson’sT-shirttypicallyproduces10mlaboutamouthful.”

ThedevicehasbeenputonshowattheGothiaCup-theworld’slargestinternationalyouthfootballtournament.MattiasRongechiefexecutiveofStockholm-basedadvertisingagencyDeportivosaidthemachinehadhelpedraiseawarenessforUNICEFbutinrealityhaditslimitations.

“Peoplehaven’tproducedasmuchsweataswehoped–rightnowtheweatherinGothenburgislousy”MattiasRongesaid.“Sowe’veequippedthemachinewithexercisebikesandvolunteersarecyclinglikecrazy.Evensothedemandforsweatisgreaterthanthesupply.Andthemachinewillneverbeproducedinlargenumberssincetherearebettersolutionsouttheresuchaswaterpurifyingpills.”[

Zx

28.UNICEFismentionedinthetextto________.

A.showhowthesweatmachineworks

B.telluswhoinventedthesweatmachine

C.showtheimportanceoftheUnitedNations

D.explainwhythesweatmachinewasinvented

29.Whichofthefollowingisthedis

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