OBM=Oxygen bottom-blown Maxhuette (process)[冶]底吹纯氧转炉炼钢(法)OBabbr.实况无线电广播 (=outside broadcast)abbr.向船外 (=outboard)oblato濡米纸,淀粉纸Oburka奥布尔卡obform倒形, 倒式, 亚型, 异形Obieta奥维塔Obydey奥贝迪obrute覆盖的,埋藏的Obizzo奥比佐Oborny奥博尔尼obliqu斜的Obashi小桥