Ghostarchive
https://ghostarchive.org/
video
1.0
[KARI]연비가 향상된 로켓엔진 연소시험(100초) 공개
http://www.youtube.com/user/KARItelevision
한국항공우주연구원 KARI TV
https://www.youtube.com/watch?v=n1bi61y8qhw
256
144
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