Institute of International Relations国际关系研究所 Institute for Intergovernmental Research专门研究学院 Injury Incidence Rate伤害发生率 Infinite Impulse Response无限推进响应 International Institute of Refrigeration国际制冷学会 Imaging Infrared成像红外 Infinite Impulse Response (digital filter design and signal processing)无限脉冲响应(数字滤波器的设计和信号处理) Intelligence Information Report情报报告 Industrial Information Resources工业的信息资源 Intermediate Information Requirement中间的信息需求 Intelligent Information Retrieval智能信息检索法 Halogenated Butyl Rubber卤化丁基橡胶 Institute for International Research国际研究 Imagery Intelligence Report图像的情报报告 International Institute of Reflexology国际学院的脚底按摩