Iyi ngingo itanga ibisobanuro birambuye kuburyo wakoresha sisitemu ya nyc neza, inzira yo gutegura igenamigambi, kwishyura ibiciro, ikibi cya bisi, no kugerwaho. Irerekana uruhare rwa bisi yakoreshejwe mu mato yakoreshejwe mu mato, basobanura inyungu zabo mu biciro no kuramba mu gihe baremeza abatwara urugendo rworoshye, rworoshye ruzengurutse umujyi.
