It was then that he saw the bright red ring of Endris's blood staining the water.
就在这时他看见Endris的鲜血染到海里。
2
For tubular structures, such as blood vessels, the hydrogel is printed in the centre and around the outside of the ring of each cross-section before the cells are added.
在生产管状结构，例如血管时，每一层细胞涂布之间，水胶会被涂布到血管截面的内外来形成支撑。
3
Heard such a story, in ancient Greek legend, the couple will ring on the other side of the middle finger, because they believe that there is a blood vessel, through heart.