natrium lamp

例句：

1. 1.The new natrium lamps are much brighter than the old ones.
   新的钠灯比旧的亮得多。
2. 2.The natrium lamp was used in ancient times to illuminate buildings.
   钠灯在古代被用来照亮建筑物。
3. 3. The natrium lamp is a popular choice for outdoor lighting due to its long lifespan and energy efficiency.
   由于其长寿命和能效，钠灯是户外照明的热门选择。