OOB=off-off-Broadway 纽约第三戏剧界OOabbr.面向对象的(=Object Oriented)oolitic iron ore deposit鲡状铁矿床oocyte penetration assay精子穿透卵母细胞检测Oooh. I hate mummies.哦，我讨厌木乃伊。oocyte of the first order初级卵母细胞oocyte-specific protein卵母系胞特异性蛋白Oocytes Mature in-vitro体外成熟oornbination optimization组合优化oocytes of Xenopus laevis非洲爪蟾卵母细胞oommunicative rationality交往理性oocyte of the second order次级卵母细胞