Ntawd yog, kev hloov kho yooj yim, hloov kho nruab nrab, thiab kev hloov kho tob.
Refitting qhov cua nkag system yog ib txoj hauv kev yooj yim refitting. Piv txwv li, ntxiv cov cua nkag hauv nruab nrab tuaj yeem ua rau huab cua nkag ntawm lub tsheb zoo dua, yog li txhim kho lub zog ntawm lub tsheb. Tsis tas li ntawd, cov neeg caij tsheb kuj tseem yuav nruab cov xov hlau hauv av thiab siv cov hlua hluav taws xob tshaj lij thiab cov xov hlau nyob. Tus neeg sau xav ceeb toom rau koj tias koj yuav tsum tsis txhob cuam tshuam cov kev tsheb qub thaum txhim kho hauv av. Cov neeg siv tsheb uas muaj qee qhov kev xav tau rau kev hloov hluav taws xob tab sis tsis xav tau lub zog ntau dhau yuav feem ntau xaiv los nrhiav lub khw kev tshaj lij los hloov kho tag nrho cov tshuab hluav taws xob ntawm lub taub hau txiv tsawb, ntu nruab nrab thiab lub caj pas raws li lub cev tsim, uas tuaj yeem ua raws cov kev xav tau nruab nrab rau kev hloov hluav taws xob.
