light intensity detector

例句：

1. 1. The lightintensity detector was used to measurethe brightness of the room.
   光强度探测器被用来测量房间的亮度。
2. 2.The new light intensity detector is more accuratethan the old one.
   新的光强度探测器比旧的更准确。
3. 3. The light intensity detectorwas used to detect the presence of afire in the building.
   光强度探测器被用来探测建筑物内火灾的存在。