All the umbilical cords of dependency still exist because the public wants them(David A. Stockman)

所有不独立的脐带仍然存在，因为公众需要它们（戴维A.斯托克曼）

All the umbilical cords of dependency still exist because the public wants them ( David A. Stockman )

所有不独立的脐带仍然存在,因为公众需要它们 ( 戴维A. 斯托克曼 )

Methods Free umbilical cords were punctured under color-ultrasound in 42 pregnant women for prenatal diagnosis.

方法对42例因各种原因行产前诊断孕妇进行脐静脉穿刺术。

Methods Free umbilical cords were punctured under color - ultrasound in 42 pregnant women for prenatal diagnosis.

方法对42例因各种原因行产前诊断孕妇进行脐静脉穿刺术.

But when she analyzed her samples Perera discovered PAH attached to some of the DNA in blood taken from umbilical cords too.

但是分析了样本之后，佩雷拉发现多环芳烃也附着于脐带血中的一些DNA 。

The genetically-engineered blood is created by taking cells from umbilical cords and using a machine to mimic the way bone marrow works to produce mass quantities of usable units of red blood cells.

这种血利用基因工程采集脐带细胞制造而成，研制者使用一台能模拟骨髓工作原理的机器大批量产生可以使用的红血细胞。