blastocyst ['blæstəsɪst]

例句:

• Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.
  植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.
  
• The blastocyst is then surgically introduced into the uterus of a foster mother.
  然后通过手术把胚囊引进寄养母体的子宫内.
  
• The attachment of the blastocyst to the lining of the uterus.
  胚泡附着到子宫内膜.这一过程称为植入.
  
• Blastocyst formation in the human usually occurs on the fifth day after fertilisation.
  来自BBC
• Tests in mouse embryos are less reliable because unlike human embryos, the vast majority of these reach blastocyst stage.
  来自BBC
• The first are embryonic stem cells, which are derived from the inner cell mass of a blastocyst, an early embryo.
  来自SA