Koj Puas Paub Qhov Tsis Paub Tseeb Ntawm Kev Yuav Ib Lub Tshuab Nqus Dej?

Cov tib neeg yuav tsum tau them sai sai rau qhov ua tau zoo thaum xaiv cov nqus dej thiab tsis txhob ua ob qho yuam kev li nram no: Ua ntej, lub tshuab nqus dej tsis kim npaum li qhov ua tau. Cov txheej txheem tsim hluav taws xob ntawm lub tshuab nqus tsev tsis yog qhov nyuaj, thiab lub ntsiab cai ntawm kev ua kom muaj cua sov yog ib yam nkaus. Qhov sib txawv tej zaum yuav dag nyob rau hauv kev xaiv ntawm cov ntaub ntawv, yog li ntawd nws tsis yog tias tus nqi kim dua thiab loj dua hom, zoo dua cov rwb thaiv kev cuam tshuam ntawm lub tshuab nqus tsev. Qhov thib ob yog qhov hnyav dua ntawm cov khob thermos yog, qhov zoo dua. Qee cov neeg tsim tawm tsis zoo yuav ntxiv cov xuab zeb thiab lwm yam khoom nruab nrab ntawm lub khob ntawm lub cev thiab cov kab hauv puab kom muaj qhov hnyav. Txawm hais tias xws li lub khob ntim thermos tau hnyav, lawv cov rwb thaiv tsev tsis zoo. Tsis muaj lub hauv paus rau kev sib cav tias qhov hnyav dua thermos khob, zoo dua cov nyhuv rwb thaiv tsev.