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...
Anthocyanidin synthesis needs proper temperature and oxygen, which will fail at low temperature or deficient oxygen.花色素的合成需要适宜的温度和充足的氧气, 低温或缺氧不利于花色素的合成.They wooed customers by offering low interest rates...他们靠提供低息来招揽客户。W...
The note was written on a scrappy bit of paper.便条写在一片破纸上。The final chapter is no more than a scrappy addition.最后一章不过是一些支离破碎的补充内容。It was a scrappy, rambling speech.那篇讲话杂乱无章, 毫无条理....
结果盐酸乙胺丁醇 、 利福平、吡嗪酰胺和异烟肼均具有良好的色谱行为.Results Ethambutol hydrochloride, isoniazid, pyrazinamide and rifampicin all had good chromatographic behavior.异烟肼有片剂和糖浆两种,口服.Isoniazid comes as a tablet and a syrup to take by mouth.异烟肼...