Naarn.纳尔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）Navicula hamuliferan.小钩舟形藻Navicula salinicolan.盐地舟形藻narrator's identityNajera Leaving?Na - modification钠化改型narrating arguement寓议论于叙事Najas ancistrocarpan.弯果茨藻Nao Mai Tong recipe脑脉通Narosky's SeedeaterNaolihe River Basin挠力河流域