source-surface distance 中文意思是什麼
source-surface distance
解釋
放射源-被照表面距離,源-面距離-
The light source adopts usa 5w high luminance led, which is energy saving ang highly effcient, whit service life reaching100 thousand hours. the reflector adopts high - tech surface treatment technology whit high reflection efficiency. the lighting distance of lamp can reach more than 250m and it can be shifted to lighting of weak light lasting 10 hours
光源採用美國5w高亮度led ,節能、高效、使用壽命長達10萬小時,反射器採用高科技表面工藝處理,反光效率高,燈具照射距離可達250米以上,還可以調到弱光連續使用10小時。 -
Source of radiation the dimensions of which are small enough, compared with the distance between the source and the irradiated surface, for them to be neglected in calculations and measurements
尺寸很小,小到與光源和被照物體之間的距離相比,在計算或測量中其尺寸可以忽略的光源。 -
The source of a directional light is assumed to be at infinite distance from the object / surface
帶方向性的光源我們可假定它與物體/表面存在無限的距離。
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