Ihe nkwado a na-egbochi mkpọchi (nke dị mkpụmkpụ maka BRB) bụ ụdị ngwaọrụ na-akụda mmụọ nwere ikike mkpofu ike dị elu.Ọ bụ ihe nkwado a na-ahazi n'ime ụlọ, nke e mere iji mee ka ụlọ ahụ nwee ike idi ibu n'akụkụ cyclical, nke na-ebutekarị ibu ala ọma jijiji.Ọ na-agụnye isi nchara dị gịrịgịrị, ihe mkpuchi ihe e mere iji nọgide na-akwado isi ma gbochie nkwụsịtụ n'okpuru mkpakọ axial, yana mpaghara interface nke na-egbochi mmekọrịta na-achọghị n'etiti abụọ ahụ.Okpokoro agbado agbado nke na-eji BRB - nke a maara dị ka okpokolo agba agbado agbado, ma ọ bụ BRBF - nwere uru dị ukwuu karịa okpokolo agba agbado nkịtị.