signal lamp housing

例句：

1. 1.The signal lamp housing is designed to protect the light bulb from damage.
   信号灯外壳的设计是为了保护灯泡免受损坏。
2. 2. The new model of the signal lamp housing has a more sleek and modern appearance.
   新型信号灯外壳的外观更加简洁现代。
3. 3. The signal lamp housing is made of high-quality materials, ensuring long service life.
   信号灯外壳由高质量材料制成，确保了长使用寿命。