NAabbr.无名麻醉剂(=Narcotics Anonymous)abbr.全国科学院会员（=National Academician）abbr.全国科学院(=National Academy)abbr.北美（=North America）abbr.不适用的（=Not Applicable）NACCDabbr.=National Advisory Commission on Civil Disorders 全国民事骚乱谘询委员会；National Advisory Commission on Civil Disorders 全国公共秩序咨询委员会