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9 ရာသီ
158 အပိုင်း
MegaStructures - Season 8 Episode 21
Incredible technology is making these 'super copters' much more impervious to attack, with Kevlar and other advanced composite materials strengthening the body - while keeping it lightweight. Using live action, re-creations, amazing archival footage and advanced CGI, we marvel at the creation of today's 'super copters' - extraordinary multi-purpose helicopters for the twenty-first century.
- နှစ်: 2012
- နိုင်ငံ: United States of America
- အမျိုးအစား: Documentary
- စတူဒီယို: National Geographic
- သော့ချက်စာလုံး:
- ဒါရိုက်တာ:
- သွန်း: