OBSabbr.观察(=Observation）abbr.瞭望台（=Observatory）abbr.已废的(=Obsolete)abbr.无线电定向标选择器(=Omnibearing Selector)obstetric hand助产士手observing life观察生活Obscherningkat奥布舍宁卡特obscurinervine隐脉白坚木碱obstetric care产科保健, 产科护理obstupefacient[医] 使昏迷的, 麻醉的observing cage观测笼obstetric hoos[医] 产钩obscuring blad遮光叶片observing zone[医] 观察地带, 监察地区