Sisitemu yo Kugarura Imyanda (cyane cyane hydrofluoric aside) ikoresha ihindagurika ritandukanye ryibigize aside. Binyuze mu nkingi ebyiri zumuvuduko wikirere uhoraho hamwe na sisitemu yo kugenzura neza, inzira yose yo gukira ikorera muri sisitemu ifunze, yikora kandi ifite umutekano muke, igera ku kigero cyo hejuru cyo gukira.