Icy'ingenzi mu ikoreshwa ry'amasashe ya dunnage ni uko ingano y'isashe igenwa n'ubusa. Iyo ibi bidahuye, amasashe ntazakora akazi kayo neza, bikaba byakwangiza imizigo n'abantu cyane. Ku byerekeye imiyoboro y'umwuka, ni ngombwa kwirinda kwangirika bitewe no kwangirika. Imiyoboro y'umwuka ntigomba gukoreshwa nk'ibyuzura inzugi cyangwa ahantu hadakomeye cyangwa ibice bigabanyamo ibintu.
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