Source of illumination
volume
British pronunciation/sˈɔːs ɒv ɪlˌuːmɪnˈeɪʃən/
American pronunciation/sˈoːɹs ʌv ɪlˌuːmᵻnˈeɪʃən/

تعریف و معنای "source of illumination"

Source of illumination
01

any device serving as a source of visible electromagnetic radiation

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