observobservation 观察；观测；观察资料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 implantation产科植入术obstetric delivery bed产床obscuration prediction掩星预报Observing soil testing测土配方observability estimate观测估计obstetric auscultation产科听诊Obstetrical depression产科抑郁Obstetric hysterectomy产科子宫切除术Obstetric intervention产科干预Obstetrical uterectomy产科子宫切除