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සංජානනය හා සන්නිවේදනය : දෘශ්‍ය මාධ්‍ය පර්යේෂණ

Sinhala

• History/ socio economy
• Education
• Technology

Don’s Theory on Aerodynamic Lift

English

• Science & Technology
• Science
• Engineering
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Hydraulic Machines

English

• Engineering
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Automotive Mechanics

English

• Engineering
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Basic Refrigeration and Air Conditioning

English

• Engineering
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