Yuav Xaiv Daim Ntawv Khob Li Cas

1. Saib: Thaum xaiv cov khob ntawv pov tseg, tsis txhob saib seb lub khob xim puas yog xim dawb lossis tsis yog. Tsis txhob xav tias qhov xim ntawm cov xim dawb, qhov kev nyiam huv ntau dua. Qee cov tuam txhab khob ntawv ntxiv cov tshuaj fluorescent whitening ntau ntau los ua kom lub khob zoo dua. Thaum cov tshuaj phem no nkag mus rau tib neeg lub cev, lawv tuaj yeem dhau los ua cov carcinogens. Cov kws tshaj lij qhia tias cov pej xeem yuav tsum tau thaij duab hauv qab lub teeb thaum xaiv cov khob ntawv. Yog tias lub khob ntawv pom xiav nyob rau hauv lub teeb fluorescent, nws qhia tau tias tus neeg sawv cev fluorescent tshaj tus qauv, thiab cov neeg siv khoom yuav tsum siv ceev faj.
2. Pinch: Lub khob lub cev yog mos thiab tsis ruaj khov, ceev faj txog cov dej to. Tsis tas li ntawd, nws yog ib qho tsim nyog los xaiv cov ntawv khob nrog cov phab ntsa tuab thiab ruaj khov. Cov khob ntawv uas tsis tshua muaj lub cev tawv yog mos heev rau tuav, thiab thaum nchuav rau hauv dej lossis dej haus, lawv yuav deform hnyav thaum tuav, thiab tej zaum yuav nyuaj rau tuav, cuam tshuam rau lawv siv. Cov kws tshaj lij taw qhia tias cov khob ntawv zoo feem ntau tuaj yeem tuav dej rau 72 teev yam tsis muaj dej, thaum cov khoom tsis zoo yuav xau hauv ib nrab teev.
3. Tsis hnov ​​tsw: Cov xim ntawm lub khob phab ntsa yog zoo nkauj, ceev faj ntawm tus number case lom. Cov kws tshaj lij saib xyuas kev ua tau zoo taw qhia tias cov khob ntawv feem ntau yog muab tso ua ke. Yog tias lawv ntub los yog muaj kab mob, pwm yuav tsis tsim nyog, yog li cov khob ntawv ntub dej yuav tsum tsis txhob siv. Tsis tas li ntawd, qee lub khob ntawv yuav raug luam tawm nrog cov xim zoo nkauj thiab cov lus. Thaum cov ntawv khob tau muab tso ua ke, tus cwj mem nyob sab nraud ntawm lub khob ntawv yuav ua rau muaj kev cuam tshuam rau sab hauv ntawm lub khob ntawv nws qhwv ib ncig. Tus cwj mem muaj benzene thiab toluene, uas ua rau muaj kev phom sij rau kev noj qab haus huv. Yog li ntawd, nws yog qhov zoo tshaj plaws los yuav cov ntawv khob uas tsis muaj tus cwj mem ntawm txheej txheej lossis luam ntawv tsawg dua.
4. Yuav kom paub qhov txawv ntawm cov khob txias thiab kub, txhua tus muaj nws tus kheej ua haujlwm. Cov kws tshaj lij tau taw qhia tias cov khob ntawv pov tseg siv hauv lub neej niaj hnub feem ntau tuaj yeem muab faib ua ob hom: khob txias thiab kub, txhua qhov muaj nws tus kheej ua haujlwm. Thaum lawv raug misaligned, nws yuav muaj kev cuam tshuam rau cov neeg siv khoom noj qab haus huv.