两点 two-points-radius 她生于一九八零年九月八日凌晨两点钟 she was born at two o'clock in the morning september eighth ..
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It is confirmed that the measuring accuracy is concerned with the radius of curvature and the distance between two measuring points.
仪器的测量精度同被测镜的曲率半径及两测量点的间距有关。
It can freeze, store, display, magnify and rotate the video signals. It can measure the distance between two points, the angles, the radius of curvature and the point density.
能对获得的视频信号进行冻结、存储、再现、放大、空间旋转、负片等处理，能测量两点间距离、夹角、曲率半径、点密度。
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