带电晕屏蔽管电晕线组的研究，就是在这种背景下应运而生的。
The study on corona wire group with corona shielding tube comes into being under this background.
在放大镜下检查冲洗出来的胶片，找出刚好能被分辨的最小线组。
The developed images are examined under a magnifier which will indicate the smallest group just resolved .
本文提出了一种运用时空域信息优化的虚拟检测线组式视频车辆检测算法。
This paper presents a vision vehicle detection algorithm based on virtual detection line group, which is optimized with space-time domain information.
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