Ntau yam teeb meem feem ntau tshwm sim thaum siv lub davhlau ya nyob twg blocks.
Qhov teeb meem kub hnyiab dub
Yog hais tias lub davhlau ya nyob twg thaiv yog dub, ib qho ntawm cov muaj peev xwm tsis tas yuav hlawv dub, oxidation kuj yuav dub. Yog li yuav ua li cas thiaj paub tseeb tias nws yog hlawv dub? Txoj kev peb siv yog los so nws nrog tus ntiv tes. Yog tias nws tuaj yeem raug muab tshem tawm, zoo li soot, nws yog cov khoom siv dub uas tsim los ntawm oxidation, thiab nws tsuas tuaj yeem ua av nrog cov ntawv xuab zeb lossis cov ntaub ntawv.
