kilometer wave

例句：

1. 1. The radar system can detect kilometers-long waves of radio waves.
   雷达系统可以探测到长达数公里的无线电波。
2. 2.The scientists used a special device to measure the kilometer-wave radiation from the sun.
   科学家们使用一种特殊的设备来测量来自太阳的千米波辐射。
3. 3. Infrared light is a type of millimeter wave that travels through the atmosphere.
   红外光是一种通过大气传播的毫米波类型。