(1) Ngwaahịa a bụ gwongworo mkpofu kichin nwere ọgụgụ isi dị elu, a na-etinye ya ọzọ site na itinye ihe mkpofu, ịkwanye shọvel, usoro nri, sistemụ hydraulic, sistemụ eletriki, wdg.
(2) Ụgbọala ahụ dum dị n'ime ya kpamkpam, nke na-eji teknụzụ nke njikọta eletriki na hydraulic eme ihe. Site n'enyemaka nke sistemụ njikwa akpaka nke igwe, ọkụ eletrik na mmiri mmiri, enwere ike iji ngwaọrụ pụrụ iche dịka ebe mkpofu ihe, usoro nri na shọvel nweta nchịkọta na iwepụ ihe mkpofu.
(1) Ngwa ịgbasa ọkụ eletrik a dị ọcha bụ ngwaahịa ọhụrụ nke ụlọ ọrụ anyị mepụtara. Maka mmezi nke okporo ụzọ obodo ukwu, okporo ụzọ ukwu, square na ebe ndị ọzọ, ịsacha elu okporo ụzọ, mee ka okporo ụzọ dị mmiri mmiri, belata uzuzu nke ụgbọala pụrụ iche, enwere ike iji ya maka ịgbara osisi akwụkwọ ndụ akwụkwọ ndụ mmiri; enwere ike iji ya dị ka injin mgbanyụ ọkụ mberede.
Ụgbọala nhicha eletriki dị ọcha bụ ọgbọ ọhụrụ nke ngwaahịa gburugburu ebe obibi nke ụlọ ọrụ anyị mepụtara, enweghị ikuku na-esi na ya apụta. Ụdị ọrụ a nwere ọrụ dịka ihicha okporo ụzọ, ihicha na ihicha, ihicha ọnụ ụzọ, elu nkume n'akụkụ ụzọ, ịgbasa nkuku ihu, ịgbasa n'azụ, egbe ịgba ọkụ nwere ike ihicha akara okporo ụzọ, bọọdụ mkpọsa, wdg.
Ngwaahịa a bụ gwongworo mkpofu a rụnyere nke nwere ọgụgụ isi dị elu, nke nwere ite mkpofu, ihe nzacha, shọvel, usoro nri, sistemụ hydraulic, sistemụ eletriki na ihe ndị ọzọ agbanwere.