柔韧性假单胞菌的一些集合具有直壁或极弱的多孔上部叶细胞。

There are some collections of P. flexilis with straight-walled or very weakly porose upper leaf cells.

youdao

为了检查一个卵细胞的染色体是否异常，医生用激光在卵细胞外膜上切一小口，通过这个小口抽取极体及其所含的染色体。

To check an egg for chromosomal abnormalities, doctors use a laser to make a small incision in the outer membrane, which allows them to extract the polar body and the chromosomes it contains.

youdao

欧兹坎用LED(发光二极管)作为光源，以此制造细胞的阴影。

Ozcan USES an LED as his light source, creating cellular shadows.

youdao

Well, I talked about the problem of using plasmids in gene therapy, that it's very difficult to get them into cells.

我们之前讨论过,基因治疗中运用质粒的问题,质粒本身极难进入细胞

耶鲁公开课 - 生物医学工程探索课程节选