Dab tsi yog lub tshuab hluav taws kub muaj hluav taws xob
A cov pa taws hauv tsev uas txav tau, cim tau hais tias cov lus qhia kev tsheb nqaj hlau yog tsau rau hauv qis dua ntawm qhov tseem ceeb flue, lub log khiav tau raug nias-txuas rau ntawm cov lus qhia kev tsheb nqaj hlau, cov hlua sib nqus sib txuas tau txuas rau hauv qab ntawm cov lus qhia kev tsheb nqaj hlau, txoj hlua sib khi yog nyob nruab nrab cov menyuam uas txhawb nqa thiab qhov sib nqus sib nqus, thiab cov menyuam txhawb nqa Qhov kawg yog meshed nrog lub log khiav thiab txuas nrog cov pa luam yeeb txawb khaws lub plhaub. Cov phaj sib khi thiab sib faib ua cov plua plav sau zawj, thiab nyob hauv cov pa luam yeeb txawb khaws lub plhaub. Cov yeeb nkab flue yog txuas nrog cov pa luam yeeb sau lub hood thiab qhov sib faib, thiab cov pas nrig sib txuas Nws txuas nrog cov pa luam yeeb txawb khaws lub plhaub thiab nqa txoj sia, lub cev muaj zog meshed nrog lub log mus ncig, thiab muaj kev sib txuas nrog cov pa luam yeeb txawb khaws lub plhaub. Cov cuab yeej muaj cov qauv yooj yim thiab tus nqi qis, tiv thaiv pa taws thiab plua plav nkag mus rau hauv chav nres tsheb, txhim kho kev kho thiab kho kom zoo, thiab ua kom muaj kev ruaj ntseg ntawm lub tsheb ciav hlau.