- direct reflection factor
- коэффициент направленного отражения (светового потока)
Англо-русский строительный словарь. 2013.
Англо-русский строительный словарь. 2013.
Daylight factor — A daylight factor is the ratio of internal light level to external light level and is defined as follows: DF = (Ei / Eo) x 100% where, Ei = illumiance due to daylight at a point on the indoors working plane, Eo = simultaneous outdoor illuminance… … Wikipedia
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stroke — stroke1 /strohk/, n., v., stroked, stroking. n. 1. the act or an instance of striking, as with the fist, a weapon, or a hammer; a blow. 2. a hitting of or upon anything. 3. a striking of a clapper or hammer, as on a bell. 4. the sound produced by … Universalium
surface coating — ▪ chemistry Introduction any mixture of film forming materials plus pigments, solvents, and other additives, which, when applied to a surface and cured or dried, yields a thin film that is functional and often decorative. Surface coatings… … Universalium