2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov looj tsom iav tsis muaj looj tsom iav thaiv txog 88 feem pua UV; polycarbonate lo ntsiab muag thaiv 100 feem pua UV. … Cov khoom no nqus tau li ntawm 40 feem pua ntawm cov rays UV. Cov tsom iav kuj tseem ua los ntawm lwm cov ntaub ntawv acrylic, uas yuav txawv ntawm qhov lawv tiv thaiv UV ntau npaum li cas.
YPuas polycarbonate muaj kev tiv thaiv UV?
Nyias thiab sib dua li yas, polycarbonate (kev cuam tshuam-resistant) lo ntsiab muag yog tawg-pov thawj thiab muab 100% UV tiv thaiv, ua rau lawv xaiv zoo rau cov menyuam yaus thiab cov neeg laus. Lawv kuj zoo tagnrho rau cov tshuaj muaj zog vim lawv tsis ntxiv tuab thaum kho qhov muag, txo qis kev cuam tshuam.
Vim li cas polycarbonate thaiv UV?
Puas yog polycarbonate thaiv UV hluav taws xob? Polycarbonate ua cov khoom thaiv yuav luag tag nrho cov teeb meem UV, lub ntsiab lus ntawm UVA thiab UVB. Lub khoom absorbs UV hluav taws xob thiab tsis tso cai rau nws kis tau los ntawm.
Qhov tsis zoo ntawm polycarbonate yog dab tsi?
Qhov tsis zoo ntawm polycarbonate yog qhov nws tsis tiv taus khawb. Piv txwv li, yog tias ib ceg yuav tsum tshwm sim rau ntawm lub patio canopy ua los ntawm polycarbonate, nws yuav raug khawb. Qhov teeb meem no tuaj yeem daws tau los ntawm polishing polycarbonate.
Ntev npaum li cas polycarbonate yuav kav ntev?
Txawm hais tias polycarbonate yog qhov ruaj khov, nws yuav tsum tau kho nrog UV tiv thaiv kom tsis txhob tig daj lossis tawg. Nrog tsim nyogkev saib xyuas, polycarbonate tuaj yeem kav ntev txog 10 xyoo, ib feem ntawm lub khob ntev npaum li cas.
Pom zoo:
Cov tshuaj tiv thaiv puas muaj kev tiv thaiv?
Cov tshuaj tiv thaiv COVID-19 txhawb koj lub cev tiv thaiv kab mob li cas? Cov tshuaj tiv thaiv ua haujlwm los ntawm kev txhawb koj lub cev tiv thaiv kab mob los tsim cov tshuaj tiv thaiv, raws nraim li nws xav tau yog tias koj yog raug tus kab mob.
Cov ntaub thaiv puas tuaj yeem thaiv cov pob txha taub hau?
Thaum koj thaiv lub pob txha taub hau nrog cov ntaub thaiv npog, qhov cuam tshuam ncaj qha yog nullified tab sis koj tseem yuav tau txais cov nyhuv wither. Cov xwm txheej zoo sib xws ntawm cov neeg siv hluav taws xob lossis cov xwm txheej cuam tshuam los ntawm cov ntaub thaiv tau raug kho yav dhau los.
Cov tshuaj tiv thaiv tam sim no puas tiv thaiv kab mob sib txawv?
2) qhov sib txawv tam sim no yog qhov sib txawv tshaj plaws ntawm COVID-19. Nws yog ze li ob zaug kis tau tus kab mob ua ntej thiab yuav ua rau mob hnyav dua. Txawm hais tias kev tshawb fawb qhia tias cov tshuaj tiv thaiv COVID-19 tsis tshua muaj txiaj ntsig zoo rau qhov sib txawv, cov tshuaj tiv thaiv tseem zoo li muab kev tiv thaiv COVID-19 hnyav.
Puas thaiv qhov thaiv ua haujlwm thaum los nag hnyav?
Dej hla ib ncig ntawm tus neeg saib xyuas, tab sis cov khib nyiab loj tuaj yeem ua tsis tau. Txawm li cas los xij, cov tus tiv thaiv tsis tau thaum los nag hnyav, thiab lawv tsis tsim los tswj lub ntim. ntawm dej thaum lub caij ntuj nag loj heev.
Puas yog lub cev tiv thaiv kab mob hauv lub cev puas tsim cov tshuaj tiv thaiv?
Lub cev tiv thaiv kab mob tau txais, nrog kev pab los ntawm lub cev hauv lub cev, tsim cov hlwb (tshuaj tiv thaiv kab mob) los tiv thaiv koj lub cev los ntawm ib tus neeg invader tshwj xeeb. Cov tshuaj tiv thaiv no yog tsim los ntawm cov hlwb hu ua B lymphocytes tom qab lub cev tau raug rau cov neeg ua phem.
