Vim li cas thiaj li hloov chais hniav li ntawm

Rab chais yog qhov xav tau rau feem ntau ntawm cov txiv neej sib txawv hauv lawv lub neej txhua hnub, tab sis txawm li cas los rab chais ntse npaum li cas, nws yuav nyob tsis dhau ua Catton nrog qhov kev siv ntau ntxiv, kev nplij siab thiab kev ua haujlwm ntawm kev chais plaub hau yuav zoo heev txo qis. Yog tias rab chais hniav tsis hloov lossis tseem ntxuav rau lub sijhawm ntev, cov pob zeb hauv av, cov plua tshauv thiab cov kab mob yuav raug adsorbed rau ntawm rab chais hniav, uas yog qhov ntau yuav ua rau kis tau tus kabmob. Lub chais plaub hau yuav tsum tau hloov tsis tu ncua.