A definition of the Far Infrared Rays (FIR)
FIR is a type of electromagnetic waves, like that of invisible rays. We know that FIR is a spectrum of sunlight.
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A definition of the Far Infrared Rays (FIR)
FIR is a type of electromagnetic waves, like that of invisible rays. We know that FIR is a spectrum of sunlight.
| | | Next → |
