Correct decisions came when the referees were moving at a speed of about 2 meters per second.

当裁判以每秒两米的速度移动时，裁判做出了正确的判罚。

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The axle connects to the outer arms of the Wheel, which begin to rotate at a speed of 1/8 of a revolution per minute.

车轴连接到这个车轮的外臂，外臂开始以每分钟1/8转的速度旋转。

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It can fly at a speed of about 200 miles per hour.

它能以每小时200英里的速度飞行。

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"If you have a fault that is being strained at a speed of 7 mm per year, which is the case here,"

VOA: standard.2010.01.13

And so when you actually have a device the bits don't flow at the speed of light in reality.

因此，当你拥有一个设备,数据位并不能以现实中的光速传输。

哈佛公开课 - 计算机科学课程节选

Even though a hard drive spins at 7200 times per minute or even faster, that's relatively slower than the speed of light.

即使一个硬盘驱动器的转速达到每分钟7200次,甚至更快，仍然比光速慢。

哈佛公开课 - 计算机科学课程节选

To travel through beautiful scenery at a speed of four horsepower is just marvelous.

FORBES: Magazine Article

Despite a fuel-saving concept the plane is designed to go at a speed of 450 mph.

FORBES: The World's Biggest Planes

On level ground, they were able to travel at a speed of seven metres a minute.

ECONOMIST: An experiment on rats brings hope to the paralysed