光学缺陷检测技术，对热连铸坯表面缺陷而言，具有高速、非接触、高分辨率等优点。
The optical inspection technology of surface defect, as for defects of hot continuous casting slabs, has advantages of high speed, contactless and high resolution.
但是，由于碳化硅材料的固有缺陷，很难获得超光滑表面以满足高精度光学望远镜的要求。
However, it is very challenging to obtain a super smooth surface for high precision optical telescopes due to the intrinsic defects of sic.
针对检测表面贴片产品缺陷的光学检测系统，提出一种三阶段的快速路径规划算法。
A fast three-step path planning algorithm was proposed for automatic optic system to inspect electronic product defects by using surface mount technology.
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