2. It lies in the infrared range of the spectrum. 它位于光谱的红外线区域内。
3. We put an infrared microscope—a spectroscope—on tiny tiny bits of paint. 我们把红外线显微镜——一个分光镜——放在很少很少的一点颜料上。
4. More infrared radiation would be absorbed and reradiated back to the Earth's surface. 更多的红外辐射将被吸收并重新辐射回地球表面。
5. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. 夜间,一架飞行在3000英尺高空的飞机上安装了一个红外扫描仪,用来测量农作物散发的热量。