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| infrared rays | |||
| infrared radiation; infrared radiation Electron magnetic radiation whose wavelengths lie in the range from 0.75 or 0.8 micrometer to 1000 micrometers | |||
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| infra-red ray | |||
| heat ray; infrared beam | |||
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Infrarotstrahlen : 5 短语, 5 学科 |
| 光学（物理学分支） | 1 |
| 微电子学 | 1 |
| 机械工程 | 1 |
| 电子产品 | 1 |
| 自动化设备 | 1 |