采取这种方式生长，平滑肌可分泌胶原，一种结构蛋白，是人体中除其它几种物质外组成血管壁的重要成分。
Grown this way, smooth muscle secretes collagen, a structural protein that is, among several other things in the body, an important component of the walls of blood vessels.
所得物保持原来支架的长度和直径，由胶原蛋白和平滑肌细胞组成，其结构类似天然血管。
The result is a tube of the length and diameter of the original scaffold, that is composed of collagen and smooth-muscle cells—a structure similar to a natural blood vessel.
这些技术使得科学家能够研究皮肤胶原蛋白的纳米结构和分子结构。
These techniques allowed the scientists to investigate the skin collagen s nanostructure and molecular structure.
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