Numerical Algorithms Group Ltd.数值算法(集团)有限公司 National Algorithms Group国家算法 Naval Astronautics Group海军航天集团 Northern Arabian Gulf阿拉伯海湾北部 Navy Advisory Group海军咨询小组 N-acetyl-beta-D-glucoaminidaseN-acetyl-beta-D-glucoaminidase Neighbors Against Garbage (Brooklyn, New York)邻居们对垃圾(纽约布鲁克林) Network Access Gateway网络访问通道 Neighborhood Action Group附近的行动小组 National Association of Gals (Rush Limbaugh name for NOW)国家协会的名称的女孩拉什•林堡(现在) Needed Acoustic Gain (sound-reinforcement systems)sound-reinforcement系统所需的增益(声学) Naval Air Gunner海军航空枪手 Neighbors Allied for Good Growth (formerly Neighbors Against Garbage)盟军的邻居提供了良好的发展(原名邻居反对垃圾) Non-Acid Generating (mineralogy)Non-Acid生成(矿物学) National Administration Guidelines国家行政指导方针