13. Ukujula komdwebo kuhlukile kucezu lokusebenza?
Isizathu 1: Ibanga elingahambisani phakathi kwendawo yokusebenza nekhanda le-laser.
Isixazululo: Lungisa ithebula lokusebenza ukuze uhlanganise ibanga phakathi kocezu lokusebenza nekhanda le-laser.
Isizathu sesi-2: Ilensi ekhanyayo ingageziwe noma iqhume.
Isixazululo: Ukuhlanza nokushintshwa.
Isizathu 3: Izinkinga zedizayini yezithombe.
Isixazululo: Lungisa ukwakheka kwesithombe.
Isizathu 4: Ukuchezuka kwendlela yokubona.
Isixazululo: Ngokwezindlela zokulungisa indlela yokubona, lungisa kabusha indlela yokubona.
