infrared ray

例句：

1. 1. Infrared rays are used to detect objects that are too far away to be seen with the naked eye.
   红外线射线被用来探测肉眼看不见的物体。
2. 2.The infrared ray detectors were used to monitor the temperature of the building.
   红外线探测器被用来监测建筑物的温度。
3. 3.Infrared ray technology is used in many applications, including remote control and medical imaging.
   红外线技术在许多应用中都有使用，包括遥控和医学成像。