National Command Authorities国家指挥机关 Nuclear and Chemical Agency核和化学代理 National Competition Authority (EU)国家竞争机构(欧盟) National Cattlemen's Association全国养牛业者协会 Nicaragua尼加拉瓜 Northern Consultancy Association北方咨询协会 National Cleaners Association国家清洁剂协会 Normal Central Assistance (India)正常的中心的协助(印度) National Communications Agency国家通讯传播机构 Network Computing and Applications (IEEE International Symposium)“网络计算及应用研讨会论文集() Neighborhood Cleaners Association附近的清洁剂协会 National Caves Association (Kentucky)国家洞穴协会(肯塔基州) National Courier Association (UK)全国导游协会(英国) Nominee-Based Congestion AlgorithmNominee-Based拥挤的算法 Notice of Cash Allocation注意分配的现金