IRDn.信息资源字典IRabbr.信息检索(=information retrieval)Irina Yatchenko伊琳娜·亚申科irredundant set无冗余集Iridaea cordatan.心形银杏藻Irina Chaschina恰希娜irradiated slug照射棒irrigation hose排灌胶管,灌溉胶管Iridium isotope铱同位素irrigation zone灌区Iridium Project铱计划irrigating spoo灌洗匙