1. Ibimenyetso byumuhanda: Amasaro yikirahure akoreshwa cyane mubimenyetso kumihanda minini, ibibuga byindege, parikingi, nahandi. Irangi irangi kumuhanda, irerekana amatara yimodoka, byongera umutekano wo gutwara nijoro.
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3. Ikirere, ibikoresho bya elegitoroniki, nibikoresho bya optique: Indanganturo yo kwangirika cyane hamwe nibintu byiza bya masaro yikirahure bituma ikoreshwa cyane mu kirere, mu bikoresho bya elegitoroniki, no mu bikoresho bya optique.
