Isimiso sokusebenza: Igqugquzelwa ifeni futhi yasatshalaliswa ukuphambukisa, uthuli olusemoyeni lukhangwa phezu kwezingxenye zokuhlunga kuyilapho igesi ehlanzekile ikhishelwa emkhathini.Uthuli olukusihlungi luzohlanzwa ngevalvu kazibuthe kagesi bese lukhishwa kuvalvu engaphansi komqoqi wothuli.