IRB=industrial reference black 工业基准黑IRabbr.信息检索(=information retrieval)Irvin Van Gorder Gillis义理寿(1875-1948),美国人,曾任驻华公使馆海军武官。irrigation organization灌水组织irrigation farming area农业灌溉区Irreducible omphalocele不能复位的脐膨出irreplaceable use value不可替代的使用价值Irredeemable bank notes不能兑现的纸币Irrigation pipe network灌溉管网IR detection technology红外探测技术iridial parts of retina视网膜虹膜部irreducible cross-cut不可约截割