再稍低一点的四腔心切面上我们可以看到房室沟处一条血管。

Lower at the level of the 4-chamber view, we could see a vessel in the atrioventricular groove.

youdao

再稍低一点的四腔心切面上我们可以看到房室沟处一条血管。

Lower at the level of the 4-chamber view, we could see a vessel in the atrioventricular groove.

youdao