Cov laj thawj tseem ceeb rau cov khaub ncaws ntxhua khaub ncaws tsis yaj suav nrog cov hauv qab no:
Cov khaub ncaws tsis raug cai: tso khaub ncaws ntxhua khaub ncaws ncaj qha rau hauv lub nruas hauv lub tshuab ntxhua khaub ncaws yuav ua rau cov hlaws dai rau cov khaub ncaws thiab tsis yaj tag.
Tsis tshua muaj cua sov: kev xaus ntawm cov khaub ncaws ntxhua khaub ncaws feem ntau yog tshaj 40 degree. Yog tias cov dej kub tsawg dhau, cov hlaws liab yuav tsis yaj tag.
Qhov Teeb Meem Zoo: Cov khaub ncaws zoo ntawm cov khaub ncaws zoo los ntawm cov xim sib txawv yuav txawv. Qee cov npe ntawm cov hlaws yuav tsis yaj tag nrho rau lub sijhawm ntev. Nws raug nquahu kom xaiv cov hom paub zoo lossis cov khoom lag luam nrog lub koob npe zoo.
Kev siv tshuab ntxhua khaub ncaws: Lub nruas nrig ntawm lub tshuab ntxhua khaub ncaws tsis huv lossis cov dej ua tau zoo tsis zoo, uas yuav ua rau cov hlaws tsis zoo. Nquag ntxuav lub nruas sab hauv ntawm lub tshuab ntxhua khaub ncaws thiab xaiv cov tshuaj ntxuav txoj hlua hluav taws xob thiab hom hlaws muaj peev xwm pab daws cov teeb meem.
Kev siv tsis raug: Kev siv ntau dhau los yog siv tsis yog yuav ua rau cov hlaws dai kom tsis yaj tag.