It's - this picture on the bottom shows the cell stuck to plastic.
如图所示,细胞紧紧地贴在塑料片上
Remember when I showed you that picture of cells attached to plastic a few minutes ago; I said those were fibroblasts that were growing on a culture dish.
还记得我几分钟前我给你们看的,细胞黏附在塑料片上的图片吧,我说过那是,生长在培养皿中的成纤维细胞
This is a game where you get a little plastic device, it's got 15 plastic numbers on it and one hole in this little plastic board and you can move those numbers up, down, left to right, and the goal is to take what's a random assortment of tiles and arrange them in numeric order and that's one of these little things you can play sort of absentmindedly.
在这个游戏中,你会拿到一个可塑的装置,上面有15个数字和一个孔,你可以将数字上下移动,左右移动,目标就是,拿到一个随机的组合后,将其按数字顺序排列,这个你可以随便玩玩。
We're familiar with polymers, plastics in our daily life; the chairs that you're sitting on are made of a kind of a plastic polymer that is basically an organic chemical that is cross-linked together.
我们应该很熟悉聚合物,比如日常生活中的塑料就是,你们坐的椅子,就是由一种塑料聚合物构成,它由基本的有机化学物质交联在一起
Cross-linked is not the right word-- that is chemically bonded with repeat units to make large molecules so that when you have a bunch of large molecules together they have certain physical properties like the solid property of the plastic that you're sitting on.
交联这个词不确切,应该是由化学键连接的,重复单位构成大分子,当许多分子聚合在一起后,它们就会具有某种物理特性,就像你们正坐着的,塑料一样,具有固体特性
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