metal-deficient star

例句：

1. 1. This star is known for its unique color, which is caused by a metal-deficient atmosphere.
   这颗星以其独特的颜色而闻名，这是由于其大气层中金属不足造成的。
2. 2.The discovery of this star has sparked interest in the study of exoplanets around other stars.
   这颗星的发现激发了人们研究围绕其他恒星的外行星的兴趣。
3. 3. The star's position in the galaxy makes it an ideal candidate for studying the properties of metal-deficient systems.
   这颗星在银河系中的位置使其成为研究金属缺乏系统特性的理想候选者。