In combination with precision motion control and laser scanning along axle and circular direction, the method can classify and recognize the defects of scotching and flaking on wheel tread.

再结合精密运动控制，以及车轴和圆周方向的快速激光扫描，实现了踏面擦伤和剥离等缺陷参数的分类和识别。

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The direction of Radar Target is got by antenna beam scanning.

雷达测定目标的方向是利用天线波束的扫描来实现的。

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Technique of well logging by directional scanning image means scanning the wall of a well according to the given direction, and makes the wall of a well be unfolded to a continuous plane.

定向扫描成像测井技术，就是按照规定的方向对井壁进行扫描，把井壁展开成一个连续的平面。

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