OPRn.光学页面阅读器OPabbr.观测点(=Observation post)Ophiarthrumpictumn.彩节蛇尾Ophiocomabrevipesn.短腕栉蛇尾Ophiothrixproteusn.海神刺蛇尾ophthalmotonomete眼压计Ophiorrhiza alatan.有翅蛇根草ophthalmia nodosa蛾虫性眼炎Opioid withdrawal阿片脱瘾oplimal solutions最优解Opisthocomiformesn.麝雉目Opg knockout mice骨保护素（Opg）基因敲除小鼠