National Aeronautical Charting Office (US FAA)美国国家航天航空局图表办公室() National Association of Countries协会的国家 National AIDS Control Organisation (India)国家艾滋病控制组织(印度) National Assessment Coordination Office (USGCRP)国家协调办公室(USGCRP) National Arts Centre Orchestra (Canada)国家艺术中心乐团(加拿大) National Auxiliary Conference国家辅助会议 National Association of Civic Officers协会的公民 Net Adjusted Charge-Offs (credit card industry)网上信用卡产业Charge-Offs(调整) National Commodore国家准将 Name Authority Cooperative (Program for Cooperative Cataloging project)合作(程序的名字权威的合作编目项目) Norwegian Anarchist Council挪威的无政府主义者 National Association of Charterboat OperatorsCharterboat协会的操作 Naval Acquisition Contract Officer海军收购合同的警官 Nebraska Association of County Officials内布拉斯加协会的郡的官员 Nevada Association of Counties内华达州协会的县