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[Subject: Chemistry]
- Aluminio oxidoa (Al2O3). Errubia eta zafiroa aluminaren barietate kristalino koloreztatuak dira. Bauxita ere, nagusiki, alumina hidratatua da.
Translated by: MARIA COLERA
Translated in 17 languages
[Subject: Metallurgy]
Translated by: ESTEBAN ETXEBERRIA ARAMBURU
Translated in 2 languages
[Subject: Sciences Of Earth & Worlds]
Translated by: ION LEIZEAGA