National Environment Protection Agency国家环境保护局 National Environmental Policy Act of 19691969年,国家环境政策法 National Electric Power Authority国家电力的权威 Nuclear Energy for the Propulsion of Aircraft核能对推进的飞机 Nigeria Electric Production Authority尼日利亚电力生产主管机关定之 New England Press Association (since 1950)新英格兰报业协会(自1950) Newsletter & Electronic Publishers Association (now Specialized Information Publishers Association)通讯及电子出版商协会(现在的专业信息出版商协会) National Energy Policy Act of 1992国家能源政策的行为 National Environmental and Planning Agency (Jamaica)国家环境和经济规划机构(牙买加) North East Productivity Alliance北东生产力的联盟 Northeastern Pennsylvania宾夕法尼亚州东北部 New England Publishing Associates新英格兰出版伙伴 Never Expect Power Again永远不指望的人 Never Expect Power At ....永远不指望电力.... National Environment and Planning Agency of Jamaica国家环境和经济规划机构对牙买加