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词汇 daylight factor
释义

Definition of daylight factor in English:

daylight factor

noun
Architecture
  • A measure of the amount of natural light at a point within a building, calculated as the ratio of the daytime illuminance on an interior plane surface to a standard external illuminance equivalent to that on a horizontal plane surface under an unobstructed overcast sky.

Origin

Early 20th century.

Definition of daylight factor in US English:

daylight factor

noun
Architecture
  • A measure of the amount of natural light at a point within a building, calculated as the ratio of the daytime illuminance on an interior plane surface to a standard external illuminance equivalent to that on a horizontal plane surface under an unobstructed overcast sky.

Origin

Early 20th century.

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