Ibicanwa Iyo ubushyuhe bwikirere bugabanutse, ubwiza bwamavuta ya mazutu ariyongera, amazi aba mabi, kandi hazabaho gutwikwa kutuzuye hamwe na atome mbi, bizagira ingaruka kumikorere yimashini.Kubwibyo, excavator igomba gukoresha amavuta ya mazutu yoroheje mugihe cyimbeho, ifite frezine nkeya ...
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