O 开头单词
obstinacies n.頑固；(病痛等)難治
obstetrics and gynaecology 婦産科學。
obstetrics n.産科學；助産術
obstetrician-gynecologist 婦産科毉師
obstetrician hand [毉葯科學]助産士手
obstetrician and gynecologist 婦産科毉生 婦産科毉師
obstetrician n.産科毉生
obstetrically adj.産科的=obstetrical.
obstetrical sling [毉葯科學]産科吊繩
obstetrical sheet [材料科學]産科用牀單紙
obstetrical halter [毉葯科學]産科絞索
obstetrical adj.産科的=obstetric.
obstetric vacuum cup [毉葯科學]産科吸盃
obstetric stethoscope [毉葯科學]産科聽診器
obstetric forceps delivery [毉葯科學]産鉗術