IRUn.国际无线电协会IRabbr.信息检索(=information retrieval)IR imaging device红外线成像设备irreinoculability[医] 再接种不能Irradiance levels光照强度irreducible water残余水Irina Korzhanenko科尔扎年科irrigation furrow灌水沟,灌溉沟irradiated region照射区irrigation canals灌渠irrigation shovel灌溉开沟铲irrefutable facts确凿的事实