?l? ?r? nkà na ?z? nwere ugbu a nd? ?r? 34, g?nyere 1 nwere akara ugo mm?ta bachelor, 23 nwere akara ugo mm?ta mahadum; na nch?kwa nch?kwa. Nd? ?kachamara g?nyere igwe, akpaaka, ?k? eletrik na mpaghara nd? ?z?. Otu nd? ?kachamara n'?l? na mpaghara nd? met?tara ya na-eje ozi d? ka onye ndu tekn?z? R&D nke etiti tekn?z? iji duzie ?r? R&D nke nnukwu ?r?.