dark ground illuminator

例句：

1. 1. The dark ground illuminator was used to illuminate the area during the night.
   暗地照明器在夜间被用来照亮区域。
2. 2. The illuminator was designed to provide bright, even light across a wide range of surfaces.
   照明器被设计为在广泛的表面上提供明亮且均匀的光。
3. 3. The illuminator was an essential tool for the construction workers, providing them with the necessary light to work safely.
   照明器是建筑工人的必备工具，为他们提供了必要的光线以安全工作。