Nitrilotriacetic Acid次氮基三乙酸 National Transportation Agency (Canada)国家运输署(加拿大) Novel Threat Agent新颖的威胁因素 Net Tangible Assets有形资产净值 National Tourism Administration国家旅游局 Northern Taurids北金牛座流星雨 Nuclear Test Aircraft核试验的飞机 Nebraska Telecommunications Association内布拉斯加电信协会 National Technical Association国家技术协会 Northern Textile Association北方纺织品行业协会 Nuclear Track A (film)核跟踪(电影) Noobtoob Army (gaming group)Noobtoob军(游戏组) North American Transportation Association北美的交通协会 National Treatment Agency (for Substance Misuse; UK)全国治疗艾滋病的药物滥用;代理(英国) National Translator Association国家翻译协会