目的探讨先天性食管闭锁及气管食管瘘的早期诊断和治疗方法.Objective To explore early diagnosis and treatment of congenital esophageal atresia and tracheoesophageal fistula.目的探讨先天性食道 闭锁 及气管食管瘘的早期诊断及冶疗.Objective To investigate early diagnosis and treat...
The ground was strewn with sharp-edged pebbles.地上铺满了棱角锋利的石子。The cloven hooves are sharp edged , elastic and concave.蹄锋利,呈凹形, 富有弹性.Objective To evaluate the effect of sharp - edged intraocular lens ( IOL ) on posterior ca...