naann.圆盘烤饼；馕（印度食物）=nan.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）Nakamura Kusatao中村草田男(1901-83),日本人,俳人。Nakagawa Hidenaonavaglobe system远程无线电导航制navigating sonar导航声纳Navicula breeniin.布伦氏舟形藻Nakayama Akinori中山彰规Na-fluorescein荧光素钠Narragansett Bay纳拉甘西特湾(美国海湾)navigating light航行灯Navicula elegansn.雅致舟形藻