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[Subject: Generalities]
Translated by: DAVIDE SALA
Translated in 44 languages
[Subject: Electricity & Electronics]
Translated in 12 languages
Translated in 9 languages
[Subject: Photography & Photographs, Apparatus, Equipments, Materials]
Translated in 8 languages
[Subject: Mechanics]
Translated in 5 languages
Translated in 2 languages