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【매일 주제】【환기공조판 20161016】

2016-10-16View Original

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이 게시글은 마지막으로 hesonchang214가 2016-11-9 15:19에 수정했습니다. 참여 보상: 2재산.정답에 대한 보상: 9 재산. 기계식 압축 공기 공급기의 전압은, 가장 불리한 회로의 파이프라인에서 발생하는 압력 손실을 제외하고, 연기 방지용 계단실의 잔여 압력은 얼마인가? A, 25pa B, 25~30pa C, 40~50pa D, 50pa 정답: C

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