Kuyendera khalidwe komwe katundu womalizidwa ndi wopakidwa amafufuzidwa potenga zitsanzo asanatumizidwe.
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Kuyendera katundu asanatumizidwe kumachitika kupanga kukatha ndipo katundu wambiri atapakidwa, asanachoke ku fakitale. Zitsanzo nthawi zambiri zimasankhidwa mwachisawawa pogwiritsa ntchito njira ya AQL.
Kawirikawiri kumaphatikizapo kuchuluka, maonekedwe ndi luso la kapangidwe, miyeso, kuyesa kagwiridwe ntchito, zilembo ndi kapakidwe. Kutengera zotsatira, katundu amatumizidwa, amapemphedwa kukonzedwanso kapena kuyenderanso kumakonzedwa.