The artist can then add a second color of glass to make designs over the first layer of glass.
VOA: special.2009.09.16
The way we did this was to coax embryonic stem cells first to develop into the surface layer.
我们是这么做的,先诱导胚胎干细胞,发育成外胚层。
First is that the ear develops from the surface layer of the embryo.
耳朵是由,胚胎的外胚层发育来了。
应用推荐