n.照明；照度

=illumination.

Illuminance of illuminating radiation is always measured in photometric units. 照明輻射的照度通常是以光度為單位。

The performance of the human eye largely depends on the level of illuminance in the visual field. 在視野中人類的眼睛表現(xiàn)大量地仰賴照明度的水平。

Over a surface, Illuminance averaged over the specified surface. 指定表面上照度的平均值。

Surface on which illuminance is measured or specified. 測量或指定照度的表面。