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[Subject: Electricity & Electronics]
Translated in 9 languages
[Subject: Photocopy]
Translated in 5 languages
[Subject: Photography & Photographs, Apparatus, Equipments, Materials]
Translated in 4 languages
[Subject: Telephone & Portable Telephone]
Translated in 2 languages
[Subject: Military Art & Science]
[Subject: Inventions & Patents]
[Subject: Mechanics]
[Subject: Data Processing - Internet - Browser - Windows]