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)Obriot奥布里奥Obiang奥比昂Obboon奥汶Obyden奥贝坚Oboura奥布拉Obinai小比内(姓,日本)Obdachn.奥布达赫(在奥地利；东经 14º42' 北纬 47º04')Obbinkn.奥宾克Obotan苯丙胺Oballa奥巴拉