The ọrụ ụkpụrụ nke kwes agba anọ bụ okpomọkụ N'ịbụ nke ugbu a na-eru n'ime kpo oku mmewere, na bimetal nwere dị iche iche ọnụọgụ nke mgbasa deformation, mgbe deformation mgbe ọ esịmde a ụfọdụ anya na push mkpanaka Nkea akara circuit na-ná mgbagwoju, otú t .
