At night, light sources embedded in each rod will allow the whole structure to glow.
到了晚上，嵌在每个塑料棒内的光源将会使整个场馆熠熠放光。
2
In all 17 species, the commonest kind of light receptors were "rod" cells, which are highly sensitive to light and allow night vision but cannot tell colors apart, they found.
The team took electrical readings from single isolated retinal horizontal cells. They found that light caused a change in electrical current in cone horizontal cells but not in rod horizontal cells.