Thawj qhov khoom saib yog khoom ntim. Lub ntim ntawm lub koomhaum raug cai meej meej luam tawm. Qhov nplaim ntawm lub thawv ntawv yuav tsum muaj tus lej ntawm daim ntawv tso cai ntau lawm, kev txhuam coefficient yuav tsum tau tsim, thiab tus qauv tsim nyog. Lub ntim ntawm cov khoom tsis tsim nyog yuav yog cov ntawv Askiv, tsis suav, thiab luam ntawv tsis meej.
Qhov thib ob, nws nyob ntawm lub cim ntawm lub tshuab nres pwm nws tus kheej. Lub tshuab nres nres rau ntawm tus nres tsheb yuav tsum muaj lub cim lag luam ntawm lub qhov tsis sib txhuam, yog tias lawv tsis muaj cov khoom tsis zoo.
Qhov thib peb, saib qhov zoo ntawm lub tshuab nplais. Qhov zoo ntawm cov dej ntim uas tsim los ntawm cov tuam txhab tsis tu ncua zoo li qub thiab sib npaug; cov khoom tsis tsim nyog muaj xim tawm.
Qeb plaub, saib ntawm qhov zoo ntawm lub tshuab nres nres. Txij li thaum lub nres pawm los ntawm tov thiab kub nias kaum ntawm cov ntaub ntawv, nws yog tsis yooj yim sua txiav txim siab qhov zoo ntawm cov khoom los ntawm lub qhov muag liab qab ib leeg. Yog li, thaum yuav nriav cov nres nres, nws yog qhov zoo tshaj los thov tus tub lag luam los muab cov ntawv xeem ntawm lub koom haum pov thawj.
