This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.
这里是我们作出的 真的心脏瓣膜。 你能看到我们先有了瓣膜的框架， 再把细胞种上去， 然后让它锻炼锻炼。