Internet Architecture Board体系结构委员会 Intake Air Bypass进气歧管 Interactive Advertising Bureau互动广告局 Internet Advertising Bureau互联网广告局 Industry Advisory Board工业咨询委员会 Inter-American Bank泛美银行 Institute of Arctic Biology (University of Alaska Fairbanks)北极的生物学研究所(大学)的阿拉斯加费尔班克斯 International Association of Book-KeepersBook-Keepers国际协会 International Arrivals Building (airports)国外游客建筑(机场) Internal Affairs Bureau内部事务 Industrial Advisory Board工业谘询委员会 International Association of Broadcasting国际广播协会 International Abstracting Board国际提炼板 Internet Advertising Board网络广告板 Interagency Board (Equipment Standardization and InterOperability)跨部门的板(设备标准化和互用性)