基本解释[医药科学]脐静脉插管英汉例句双语例句Objective To explore the effect of umbilical vein catheterization on premature infants.目的探讨脐静脉插管术在早产儿中的应用效果。umbilical vein catheterization更多例句词组短语短语catheterization umbilical vein 脐静脉导管插入术umbilical vein catheterization更多词组专业释义医药科学脐静脉插管