early-type star

例句：

1. 1. Early-typestars are often found in the outer regions of our galaxy.
   早期型恒星通常存在于我们的星系外围区域。
2. 2. The discovery of early-type stars has helped us understand the formation of galaxies.
   发现早期型恒星有助于我们理解星系的形成。
3. 3.Early-type stars are known for their ability to produce high-energy radiation.
   早期型恒星因其产生高能辐射的能力而闻名。