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하중을 많이 받는 부품은 한 개의 소재를 통째로 가공해 사용하기도 한다.항공기zdnet.co.kr 2024-11-05스웨덴 남서부 베스트라예탈란스주 스카라시 숲엔 거대한 풍력터빈 타워 구조물이 있다. ‘바람개비’ 모양의 거대한 <...www.donga.com 2024-01-01
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