IRMn.检查要求手册IRabbr.信息检索(=information retrieval)irrelevancy theory股利无关论irrigating cannula冲洗套管IR imaging guiding红外成像制导irrigation hydrant灌溉龙头,灌溉水栓irrigation channel灌渠irrigation maximum灌溉上限Irrigation machine喷灌机irrigation control灌溉控制IR thermal imaging红外热像仪irrigation pattern灌溉模式