Ntakibazo cyaba igikorwa cyogukora hamwe nibice bitunganyirizwa, kubera gutunganya cyangwa impamvu zitandukanye ziganisha kubice ubwabyo bigaragara nkibimenyetso byinshi bya burr na mashini, ibyo bimenyetso byo gutunganya bizagira ingaruka zikomeye kumiterere yimikorere yibice bya mashini, birakenewe rero gukoresha siyanse ...
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