| 释义 |
indirect illumination
indirect illuminationBattlefield illumination provided by employing searchlight or pyrotechnic illuminants using diffusion or reflection. a. Illumination by diffusion: Illumination of an area beneath and to the flanks of a slightly elevated searchlight or of pyrotechnic illuminants, by the light scattered from atmospheric particles. b. Illumination by reflection: Illumination of an area by reflecting light from low cloud. Either or both of these effects are present when a searchlight is used in defilade or with its beam spread to maximum width.indirect illumination
in·di·rect il·lu·mi·na·tion (indi-rekt i-lūmi-nāshŭn) Use of the mirror surface to reflect light onto a tooth surface in a darker area of the mouth. |