Ngwaahịa

Usoro BAAỌrụ ugbo hub bụ sistemu eji ebu oghere jikọtara ọnụ, tee ya ma mechie ya maka ndụ nke otu ahụ. Nkeji mgbanaka ndị a nwere mgbanaka mpụta nwere flanged nke etinyere ya wee pịa ka ọ nabata diski. Ihe mgbanaka dị n'ime ahụ kwụchiri nwere eriri stub nke nwere eri maka ịgbanye ngwa ngwa n'obere ogwe aka ọ bụla.