Based on the chroma theory, an estimating system of the qualities of the chroma and luminosity of the LCD optical engine and the mathematic model are established.
研究了色度学原理并结合光学引擎的结构，构建了LCD光学引擎色度光度品质评价体系以及数学分析模型。
This paper presents an untouched optical measuring method in finding out the deformation of an aircraft engine vane.
针对飞机叶片表面变形量测量要求提出一种非接触式光学测量方法。
BORESCOPE, An electro-optical device for looking at internal parts of an engine through holes in the engine. (borescope ports)
孔探仪， 用于通过发动机内的孔（孔探口）观察发动机内部件的电光设备。
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