ipi abbr. in partibus infidelium (Latin=in the regions of the unbelievers) (拉丁语)在非教徒地区; impregnated paper insulated 浸制纸绝缘(线); interior point intermodal 内部联运; intelligent peripheral interface 智能外部设备接口
IREC abbr. Irrigation Research and Extension Commission 灌溉研究委员会; Irrigation Research and Extension Advisory Committee 澳大利亚灌溉研究与扩建咨询委员会; induced resonance electron cyclotron (maser) 感应谐振电子回旋加速器(脉泽); International Real Estate Corporation (Singapore) (新加坡)国际不动产联合公司