Xaiv thiab tso cov khoom lag luam

Xaiv thiab tso cov khoom lag luamCov cuab yeej siv txhua yam raug khaws cia khaws cov khoom los ntawm cov txee lossis chaw khaws cia thiab muab cov thawv thauj khoom. Piv txwv li, hauv lub tsev rau khoom, nws tuaj yeem khaws cov khoom lag luam tshwj xeeb los ntawm lub txee siab thiab muab tso rau hauv ib lub thawv ntawm kev siv conveyor.