stellar metallicity

例句：

1. 1.The star's stellar metallicity is a key factor in its life cycle.
   这颗星的恒星金属丰度是其生命周期的关键因素。
2. 2. The study of stellar metallicity has led to new insights into the formation of stars.
   恒星金属丰度的研究已经揭示了新恒星形成的见解。
3. 3. The discovery of a planet with a stellar metallicity similar to that of our sun has sparked excitement among astronomers.
   发现一个与太阳恒星金属丰度相似的行星，激发了天文学家们的兴奋。