"What we are seeing in Iceland is that as the magma particles get towards the surface, they interact with the very cold water and they chill to form glassy fragments and these glassy fragments are small, they have sharp edges and when those get up in the air that is what is causing the risk to aviation."
VOA: standard.2010.04.15
The kinds of proteins that sit on a cell surface and form adhesion junctions with neighboring cells, that's one class of cells on the surface.
这些蛋白位于细胞表面,和相邻的细胞建立粘附链接,这是细胞的一个种类
So we need to get embryonic stem cells to form surface cells.
那么,我们就应该从表层细胞中提取胚胎干细胞。
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