- ceiling cavity reflectance
- انعكاسّيةُ تَجْويفِ السّقْف
English-Arabic engineering terms dictionary. 2015.
ceiling cavity reflectance
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Lumen method — Also known as the zonal cavity method, the lumen method is a series of calculations that uses horizontal illuminance criteria to establish a uniform luminaire layout in a space. In its simplest form, the lumen method is merely the total number of … Wikipedia
