Txoj kev 1
Tsuas yog saib tus lej tus qauv kev nyiam huv lossis daim ntawv lo rau tom qab ntawm lub ntim. Raws li txoj cai tshiab hauv lub tebchaws, daim ntawv tso quav tso quav yuav tsum tau sau tias "daim ntawv tso quav". Yuav luag txhua lub tuam txhab loj sau nws me me, me me, me me heev. Koj yuav tsum ua tib zoo nyeem nws. Yog tias tsis yog, koj tuaj yeem xa mus rau tus qauv kev nyiam huv.
Txoj kev 2
Cov ntaub so ntswg ntawm lub ntsej muag tsis zoo tam sim ntawd hloov mus rau cov khoom seem thaum soaked hauv dej, thaum cov ntaub so ntswg ntawm lub ntsej muag tseem zoo li qub tom qab soaked hauv dej. "Cov khib nyiab poob qhia tias qhov zoo ntawm cov ntaub so ntswg tsis yog raws li tus qauv, thiab nws yuav ua tau los ntawm kev rov ua dua ntawm cov ntawv pov tseg."
Raws li lub tuam tsev soj ntsuam xyuas zoo, cov ntaub so ntswg thiab cov ntaub so ntswg uas tsis zoo muaj ntau yam fungi, Escherichia coli, tuberculosis, kab mob siab, thiab lwm yam, uas tuaj yeem yooj yim ua rau cov kab mob xws li enteritis, typhoid fever, dysentery, thiab kab mob siab. Ntxiv nrog rau qhov teeb meem ntawm cov kab mob no rau tib neeg lub cev, cov neeg tsim khoom kuj ntxiv cov tshuaj dawb thaum lub sijhawm tsim khoom, uas muaj cov tshuaj carcinogenic. Piv txwv li, fluorescent whitening agents muaj cov hlau hnyav cadmium, uas tuaj yeem ua rau cov ntshav puas thiab ua rau lub cev tsis zoo.
Cov kws tshaj lij pom zoo kom tsis txhob siv cov ntaub so ntswg ntawm lub ntsej muag uas tau poob. Thaum noj mov, sim nqa koj tus kheej tes phuam, ntaub so ntswg, lossis ntxuav koj lub qhov ncauj tom qab noj mov. Thaum yuav cov ntaub so ntswg, nws yog ib qho tseem ceeb uas yuav tau xaiv cov khoom los ntawm cov tuam txhab muaj npe nrov thiab yuav cov ntaub mos muag, tsis muaj impurity, thiab tsis muaj ntxhiab tsw.
Cov tshuaj fluorescent
Ntau tus neeg siv khoom xaiv cov ntaub so ntswg hauv kev nrhiav "qhov zoo dua". Nyob rau hauv xws li kev lag luam xav tau, manufacturers yuav sim lawv qhov zoo tshaj plaws los txhim kho qhov ci ntsa iab thiab dawb ntawm daim ntawv. Yog tias tsis muaj tshuaj ntxiv ntxiv, tsuas yog cov ntoo zoo nkauj tuaj yeem siv rau kev tsim khoom. Txawm li cas los xij, tus nqi yog kim. Yuav kom txuag tau tus nqi, cov tuam txhab lag luam yuav ib txwm ntxiv cov tshuaj xws li cov tshuaj fluorescent thiab softeners los xyuas kom meej cov xim ntawm daim ntawv.
