Mtundu wa mavidiyo wamatsenga umakhudzana ndi chitetezo ndi moyo wa zida zamakina, kotero mtundu wowotcha uyenera kulamuliridwa mosamalitsa. Musanalowe, weld iyenera kutsukidwa ndikukonzedwa kuti ikhale yoyera, yathyathyathya, yopanda ma pores ndi ming'alu; Panthawi yowotcherera, chidwi chiyenera kulipidwa kuti liziwongolera kutentha ndi liwiro, ndikuwongolera kukula ndi mawonekedwe a weld. Pambuyo potcheretsani, kuyendera kwathunthu ndi kuvomerezedwa kwabwino kuyenera kuchitika, kuphatikiza zowunikira, x {}}}}
