Using a ruler, mark a light line with your pencil down the left-hand edge, about 1-2cm in.

用尺子在左边画一条直线，离边缘1 - 2厘米。

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The height of one section of the object surface can be obtained after computing the pixel coordinates of the light line, and the whole 3d shape can be got with a one-dimension scanning rig.

通过对像面上亮线像坐标的计算可以得到物体上一个剖面的高度数据，如果再加上一维扫描就可以得到三维面形分布。

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Light line, only the back, leaving your season, all the way north.

逆光而行，只剩背影，离开有你的季节，一路向北。

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He said he could see the flash of light from Confederate guns along a line a kilometer long.

VOA: special.2009.12.17

The light blue line represents the Russell 2000, which was down 2.36%.

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However, look at that light green line.

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Mayor ANTONIO VILLARAIGOSA (Los Angeles): I will be on that subway and that light rail line today to encourage people to remain calm and to demonstrate my confidence that this system is safe and that we are doing everything possible to ensure the safety of our passengers.

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