• 12 Videos, Slides, Films

• 12 Technology and civilization
• 4 Chemistry
• 3 Mechanical engineering
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• 3 Waves
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• 1 Aerodynamics
• 1 Aeronautics
• 1 Air conditioning
• 1 Biology
• 1 Canning & preserving
• 1 Computer architecture
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• 1 Medicine
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• 1 Plastics

• 12 Films Media Group
• 12 Films for the Humanities & Sciences (Firm)

• 12 English

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