hk jung2020년 1월 22일1분 분량20kg 드론시연 https://www.youtube.com/watch?v=x0Fbf_-n8MA&feature=youtu.be&fbclid=IwAR0NCdJKZujrX2_ag9BbH9JF7X3yMaIeLROemCR1FtgZZTO7YzBSWQqZc1I 조회 35회댓글 0개좋아요로 표시되지 않은 게시물
https://www.youtube.com/watch?v=x0Fbf_-n8MA&feature=youtu.be&fbclid=IwAR0NCdJKZujrX2_ag9BbH9JF7X3yMaIeLROemCR1FtgZZTO7YzBSWQqZc1I
