The experiments conducted on the diameter of circle and coordinates of circle center reveal that this method is practical.

通过对圆的直径和中心坐标的测量实验，结果表明，该方法切实可行。

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Spatial calibration and finding circle center are introduced to measure the images acquired from different angles, and the results are perfect.

采用空间校正及查找圆边的方法对同一零件旋转不同角度采集到的图像进行测量，从而得到被测参数的精确结果。

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Measurable parameters include the coordinates of the circle center of the cutter teeth compact and the compact's back rake Angle and side sway Angle.

可测量的位置参数有切削齿复合片的圆心坐标及负前角、侧偏角等。

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They have a center,and arms of matter that seem to circle the center like a pinwheel.

VOA: special.2009.04.29

When a particle moves in a circle, it has an acceleration towards the center of this size, v^2 over R.

当一个质点在圆周上运动时,它有一个指向圆心的加速度,v^2 / R

耶鲁公开课 - 基础物理课程节选

That means the acceleration is pointing towards the center of the circle and it has a magnitude a.

也就是说加速度,始终指向圆心,其模长为 a

耶鲁公开课 - 基础物理课程节选

Next he uses a delicate kitchen knife to cut out scallop shapes around the center circle.

CNN: Carving up a spooky Halloween

The modernist structure is built of concrete and glass, with an undulating copper roof that rises to an open semi-circle at its center.

FORBES: Bob and Dolores Hope. Source: Hope Family

Plows and shovels were used to clear the penalty areas, center circle and midfield stripe as snow got heavier, and a yellow-and-purple ball was used.

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