Cov khoom sib txawv muaj qhov xav tau sib txawv rau ntim sab nrauv. Qee qhov hais kom meej meej tias lub hnab ntim khoom yuav tsum tau ua los ntawm cov ntaub ntawv tshiab, thiab qee qhov xav tau lub hnab nab ua los ntawm cov khoom siv rov ua dua tshiab.
Txawm hais tias muaj cov khoom siv rov ua dua tshiab hauv lub hnab ntim khoom, lo lus nug no nyuaj rau piav qhia. Raws li kev xav, cov ntaub ntawv raw ntawm cov hnab ntim tau nthuav tawm thiab kos, thiab tom qab ntawd rov siv dua thiab rov siv dua. Lawv txhua tus yuav tsum yog cov khoom siv rov ua dua tshiab. Nws tsis hais txog kev rov ua dua tshiab thiab rov ua dua tshiab ntawm cov hnab ntim pov tseg.
Feem ntau hais lus," cov khoom siv tshiab ntim hnab" hais txog kev siv cov khoom siv rov ua dua tshiab yam tsis tau yuav cov khoom pov tseg thiab cov khoom siv rov ua dua tshiab, thiab tsim cov khoom siv sab sab thiab pov tseg txhob lo lo ntxhuav raws li cov khoom siv tshiab. Txawm hais tias muaj cov khoom siv rov ua dua tshiab hauv lub hnab ntim khoom yog qhov nyuaj rau txiav txim nrog qhov muag liab qab. Nws tsis muaj cov qauv hauv tebchaws lossis cov qauv kev lag luam. Muaj cov lus tsis tau sau tseg hauv cov lag luam yas ntim khoom: hauv cov txheej txheem tsim cov hnab ntim khoom, cov khoom siv tshiab tau rov ua dua tshiab thiab pelletized ua cov ntaub ntawv tseem ceeb, thiab cov hnab ntim pov tseg tau rov ua dua tshiab thiab siv ua cov khoom siv thib ob. Raws li nqe lus no, lub hnab ntim nrog cov khoom siv dua ib zaug tsis yog rau lub hnab ntim nrog cov khoom siv rov ua dua tshiab. Cov hnab ntim nrog cov khoom siv rov ua dua tshiab yog cov hnab ntim nrog cov khoom siv rov ua dua tshiab, thiab txhua lub hnab ntim khoom uas tsim los ntawm cov khoom siv rov ua dua tshiab yog hu ua cov hnab ntim rov ua dua tshiab.



