Not only can scientists now identify what types of planets exist, they can see how common each type is, yielding clues into the enigmas of planetary formation.
现在科学家不仅能识别行星的存在形式，还能够了解每种类型的数量，找出行星构造之谜的线索。
2
HSCs are the major cell type involved in liver fibrosis, which is the formation of scar tissue in response to liver damage.
肝星状细胞是一种与肝纤维化密切相关的主要的细胞种类，它在肝受到损伤时形成瘢痕组织。
3
Changing the type of lighting wouldn't have much impact, the scientists suspect, unless cities would use red lights, which don't interfere with nitrate radical formation.