umbilical l cord脐带
umbilical-cord hgation脐带结扎
umbilical l cord scissors脐带剪
single umbilical artery cord单脐动脉脐带
Umbilical Cord Cell System脐带细胞系统;脐带细胞系
circulor of umbilical cord脐带绕颈
coils in umbilical cord脐带圈
abnormal umbilical cord insertion脐带附着异常
knot of umbilical cord脐带打结
N-COUNT（可数名词） The umbilical cord is the tube that connects an unborn baby to its mother, through which it receives oxygen and food. 脐带 [usu sing]