Nondirectional Radio Beacon什么意思

Non Directional Beacon无方向性的明灯 Nuclear Depth Bomb核深度炸弹 Non Direction Beason无向信标 Nutrient Databank Identifier (USDA)营养资料库,标识符(USDA) Non-Deductible Breakfast (film/acting)Non-Deductible早餐(电影/代理) Network Dependent Business网络的依赖 Networked Database Service网络数据库服务 Next Business Day下个工作日 Nondirectional Radio Beacon无线电广播台的混合 None of Your Damned Business不关你的可恶的业务 Neue Deutsche Biographie (German)德意志Biographie(德国)的幻 Navigational Data Base导航数据基础 New Developments in Bioinorganic新的发展生物无机 National Discount Brokers国家折扣经纪公司 Never Done Before从未做过的事