Kurinda inkuba / Impamvu
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3. Kuramba cyane: Kurwanya cyane kwangirika no kwangirika, gushobora gukora neza igihe kirekire mubihe bibi.
4. Igishushanyo cyoroheje kandi cyoroheje: Igishushanyo cya firime yoroheje kandi yoroshye guhuza nibindi bice bigize imirasire y'izuba, bigabanya uburemere bwa sisitemu hamwe nikibazo cyo kuyishyiraho.
5. Biroroshye gutunganya: Irashobora gukata no kubumbwa nkuko bikenewe kugirango ihuze ubunini butandukanye bwizuba hamwe nuburyo bwa sisitemu.
6. Ibidukikije byangiza ibidukikije: Ibikoresho bidafite ubumara bikoreshwa mugukurikiza amahame y’ibidukikije, bikagira ingaruka nke ku bidukikije.