Mechanical oche ndozigharị oche anaghị echekwa ya, adaba na ọ dịghị mfe ịgbaji
Nhazi mpempe akwụkwọ anaghị emebi ala, na-eme ka akụrụngwa kwụsie ike na nchekwa
Njirimara ngwaahịa
Onye na-azụ akwara oblique
Ụdị mmega ahụ abụọ na-eme n'ime afọ iji mepụta afọ siri ike, nke nwere ike ịkwalite uru ahụ na-adịghị mma. Oche na-atụgharị nwere mpi anọ nwere iberibe arọ.