Kuma
-
Kuma yumye hamwe ningufu nke zikoreshwa kandi zisohoka cyane
Ibiranga ibyiza:
1. Ukurikije ibikoresho bitandukanye bigomba gukama, hashobora gutorwa imiterere ikwiye ya silinderi.
2. Igikorwa cyoroshye kandi cyizewe.
3. Inkomoko zitandukanye z'ubushyuhe zirahari: gaze gasanzwe, mazutu, amakara, ibice bya biomass, nibindi.
4. Kugenzura ubushyuhe bwubwenge.
