Ibyuma bishyushye bishyushye nibyuma byarangiye ibyuma byashushe kandi bisanzwe bikonje. Bikozwe mubyuma bya karubone nkeya hamwe nicyuma gisanzwe kivanze mubushyuhe bwinshi. Zikoreshwa cyane mugushimangira beto zubakishijwe ibyuma kandi byubatswe byubatswe. Bumwe mu bwoko bwibyuma bikoreshwa cyane.
Ibyuma bishyushye bishyushye ni ibyuma bifite uburebure bwa mm 6.5-9, kandi ibyinshi muri byo bizunguruka mu nkoni; abafite diameter ya mm 10-40 muri rusange ni utubari tugororotse dufite uburebure bwa metero 6-12. Ibyuma bishyushye bishyushye bigomba kugira imbaraga runaka, aribyo gutanga umusaruro nimbaraga zikaze, arizo shingiro nyamukuru ryo gushushanya imiterere. Igabanijwemo ubwoko bubiri: icyuma gishyushye kizengurutswe nicyuma gishyushye. Icyuma gishyushye kizengurutse icyuma kiroroshye kandi kirakomeye, kandi kizagira ikintu cyizosi iyo kimenetse, kandi igipimo cyo kuramba ni kinini.
Igihe cyo kohereza: Nyakanga-25-2022