제3장 폭발 기초지식 2
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2. 마그네슘-알루미늄 합금의 폭발 농도 하한값은 ( ) g/m3입니다. A 30 B 40 C 50 D 60 정답: C
마그네슘 알루미늄 합금의 폭발 농도 하한값은 50g/m3입니다
우리가 이렇게 많은 게시물을 한꺼번에 올리면 안 될까요?
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