luminosity distance indicator

例句：

1. 1.The luminosity distance indicator is used to measure the distance between stars.
   光度距离指示器用于测量恒星之间的距离。
2. 2.The new luminosity distance indicator provides more accurate measurements.
   新的光度距离指示器提供了更准确的测量。
3. 3. The luminosity distance indicator was developed to help astronomers better understand the universe.
   光度距离指示器被开发出来，以帮助天文学家更好地理解宇宙。