Obsity肥胖
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)
obstetrical sling for dogs狗用产科吊绳
obsequent fault line scarp逆断线崖
Observing state of illness观察病情
obstetric hemorrhagic shock产科失血性休克
obstetrician-gynecologist妇产科医师
Obstetrical trachelorrhaphy产科宫颈缝术
obstetrical instruments set产科器械包
Observability decomposition能观性分解