它被包围着的颅骨和三层坚韧的细胞膜被称作脑（脊）膜保护着。

This is provided by the surrounding skull and three tough membranes called meninges.

youdao

当尖端穿透细胞膜，膜即将玻璃毛细管封住。

When the tip penetrates the cell membrane the membrane seals around the glass.

youdao

不仅修复在压缩站点膜的糖，而且在那里的细胞膜被打破，由于处理其他网站。

Not only had the sugar repaired membranes at the compression site but also at other sites where the cell membranes were broken due to handling.

youdao

They go across the membrane - this is the trans-membrane part of the receptor that's going across the membrane.

它们跨越式的存在于细胞膜上,这就是受体的跨膜部分,它跨越了细胞膜

耶鲁公开课 - 生物医学工程探索课程节选

There's lipid chains in between so cell membranes are lipid rich layers that can exist in water.

脂质链在两者中间,所以细胞膜是富含脂类的膜层,并可以稳定存在于水中

耶鲁公开课 - 生物医学工程探索课程节选

We talked about the cell membrane, the plasma membrane separating the inside form the outside.

我们讲过细胞膜,这种质膜将细胞内外区分开

耶鲁公开课 - 生物医学工程探索课程节选