Cov txheej txheem:
Video: Puas yog cov dej khov qhuav siv tau sab hauv tsev?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
CO2 tuaj yeem yog Txaus ntshai nyob rau hauv qhov chaw kaw
Ceev faj heev thaum twg siv dej khov qhuav sab hauv tsev . Cov dej khov qhuav sublimates rau carbon dioxide, lossis CO2. ("Sublimates" txhais tau tias hloov mus rau hauv cov pa los ntawm cov khoom.) Nws yog txaus ntshai siv dej khov qhuav hauv chav me lossis chaw tsis muaj qhov cua nkag tau zoo.
Tib neeg kuj nug, cov pa dej khov qhuav puas txaus ntshai?
Yog dej khov qhuav tau khaws cia rau hauv ib cheeb tsam uas tsis muaj qhov cua nkag tau zoo, nws tuaj yeem ua rau tib neeg nqus cov pa CO2 ntau, uas ua rau cov pa oxygen hauv lub cev ploj mus, CDC hais. Qhov no, nyeg, tuaj yeem ua rau teeb meem cuam tshuam, suav nrog mob taub hau, tsis meej pem, tsis meej pem thiab tuag.
Ib tus kuj tseem yuav nug tau, yam thawv twg koj tuaj yeem tso dej khov qhuav? Cov dej khov qhuav yuav tsum muab cia rau hauv lub thawv uas muaj insulated. Lub tsev khaws khoom, txawm li cas los xij, yuav tsum tsis txhob airtight kiag li. Cov pa roj carbon dioxide tuaj yeem ua rau lub thawv nthuav dav yog tias nws airtight, thiab nws tseem tuaj yeem ua rau lub thawv tawg. Tsis tas li, nco ntsoov tsis txhob khaws cov dej khov qhuav tas li lub tub yees hauv a tub yees.
Yog li ntawd, koj yuav ua dab tsi nrog dej khov qhuav?
Muaj ntau cov lus ceeb toom tseem ceeb kom ua thaum tuav cov dej khov qhuav:
- Cov dej khov qhuav txias ntau dua li cov dej khov ib txwm, thiab tuaj yeem hlawv cov tawv nqaij zoo ib yam li frostbite. Koj yuav tsum hnav cov hnab looj tes tiv thaiv thaum tuav nws.
- Khaws cov dej khov qhuav kom tsis txhob ncav cuag cov menyuam.
- Tsis txhob noj lossis nqos dej khov qhuav.
- Tsis txhob nqus cov pa roj carbon dioxide.
Dab tsi yog qhov txaus ntshai ntawm kev tso dej khov qhuav rau hauv lub khob ntim?
Cov dej khov qhuav yog qhov txaus ntshai rau peb yam laj thawj: Nws tuaj yeem tawg raws li qhov cov pa roj carbon dioxide raug tso tawm thiab nws hloov mus ua roj. Yog tias koj tso dej khov qhuav rau hauv lub thawv ntim cua lossis koj lub freezer, nws tuaj yeem ua rau lub nkoj tawg.
Pom zoo:
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