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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 phrases in 5 subjects |
| Automated equipment | 1 |
| Electronics | 1 |
| Mechanic engineering | 1 |
| Microelectronics | 1 |
| Optics branch of physics | 1 |