레벨 3 또는 4의 주요 위험 원인은 SIS로 이동해야 합니까?
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보안검사 총국 문서 제116호에 대한 이해
아니요, 레벨 1과 2에만 필요합니다.
레벨 3 주요 위험 소스의 경우 이중 액체 레벨 게이지를 표시해야 합니까?
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