The researchers measured the perceptual acuity of more than 100 children in primary schools, and calculated the speed of approach that they could reliably detect.

研究人员测量了100名在校小学生的认知敏锐度，并计算出他们确实能够判断的速度。

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This function can make numerical control system according to the point in the X coordinates, as the diameter of the workpiece calculated value spindle speed, and the cutting speed to be constant.

该功能可以使数控系统根据刀尖所处的X坐标值，作为工件的直径值来计算主轴转速，使切削速度保持恒定。

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The first_order critical fluid speed with concrete structural parameters is calculated, and the influence on critical fluid speed is studied when the structural parameters are changed.

求得了具体结构参数情况下的第一阶屈曲临界流速，计算了结构参数变化对临界流速的影响。

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This number is calculated by considering both horizontal speed and vertical bounce of a tennis ball off a court.

CNN: Tennis interactive: Why clay is so different

If the Uber car is travelling at a speed greater than 11 mph, the price is calculated on a distance basis.

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Sgt Martyn Bougourd, a police collision investigation officer, said he calculated that the quad bike had been travelling at 32mph, within the 35mph speed limit for the road.

BBC: Guernsey girl's quad bike death ruled accidental