来自《耶鲁大学开放课程：生物医学工程探索第23集第23集》

several millimeters like a drinking straw would be.

而喝水用的吸管要粗多了
You fill this up with cells,

在吸管中填满细胞
you fill up the hollow fiber with cells.

用细胞填满这个空心纤维
The fiber is a special material in that:

这种空心纤维由特殊材料制成
it's biocompatible so you can implant it in the body

它具有生物相容性可植入体内
and the body doesn't respond adversely to it,

身体不会对它产生排斥
it has a controlled porosity

同时它的孔径可控
so that molecules can pass in and out.

分子可以自由进出
It's porous,

纤维是多孔状的
it allows molecules to pass in and out

允许分子自由进出
but it doesn't allow cells to pass in and out.

但细胞却不能通过
It's a filter,

它是一种筛子