Nke abuo, mmiri na-eguzogide ya siri ike karị, ma e jiri ya tụnyere ngwaọrụ ndị ọzọ, ọ nwere ike ime mgbanwe na gburugburu ebe dị njọ ma ọ bụ nke siri ike n'ihe gbasara mgbanwe gburugburu ebe obibi.E jiri ya tụnyere ngwaọrụ eletrik, ntinye ego mbụ nke ndị na-emepụta ngwá ọrụ pneumatic buru ibu, mana ogologo oge ...
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