Vuba aha, isosiyete yacu yateje imbere ubwoko bushya bwimbaraga zidafite imbaraga.Iki gicuruzwa gifite ibiranga imbaraga nyinshi, kurwanya ruswa no kurwanya ubushyuhe bwinshi, kandi birashobora gukoreshwa cyane muri peteroli, amashanyarazi, ingufu za aerospa ...
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