books infrared rays
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# What is infrared?
# infrared
# Infrared spectroscopy
# Infrared Technologies
# infrared imaging
# infrared telescopes
# Infrared guidance
# infrared filter
# Disadvantages of infrared
# infrared detection
# Infrared cons
# Infrared benefits
# Infrared damage
# Infrared concept
# infrared emitters
# infrared sensors
# Ultraviolet and infrared
# Infrared ruler
# Infrared sources
# far infrared
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infrared rays (Info)
infrared rays:- أشعة غير مرئية يقل ترددها عن تردد موجات الضوء الأحمر، ويستدل عليها بتأثيراتها الحرارية. (معجم الكيمياء والصيدلة (ج٢))
