他预测原油移动的速度是100厘米每秒，并且将推荐的管道区域乘以它。
He estimated the oil was moving at 100 centimetres per second, and multiplied this by the proposed area of the pipe.
当它以最高速度运转时，环绕其轨道传播地质子将达到每秒仅比光速低30厘米的速度。
When it is running at full throttle, the protons going round it will be travelling within 30cm a second of the speed of light.
这种身长只有10厘米小型爬行动物，可以在沙子中以最快每秒15厘米的速度游动。
This small reptile, which measures just 10 centimeters long, can swim through the sand dunes at up to 15 centimeters per second.
他们的计算表明，快速而持续的微小空气波动可以使毯子达到每秒一英尺(译者：30.48厘米)的飞行速度。
Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second.
如果科学家能够使光子减慢到足够的程度——Hau教授力争使其达到大约每秒一厘米，那么，他们就可能在光经过它时画出光的图像。
If they can slow photons down enough — Hau is shooting for about a centimeter a second — scientists could make images of the light as it passes by.
“菲莱”以每秒80厘米的速度被推离开罗塞塔，在彗星很小的引力作用下漂向彗星。
Philae was nudged gently away from Rosetta at a speed of about 80 centimetres a second, and left to drift towards the comet under the influence of that object's feeble gravity.
花钟的独特之处是，它有着世界上最长的秒针，长2。5米，每秒钟要走动约27厘米。
The flower clock has the peculiarity to have the world's longest arm for seconds. it measures2.5meters. each second it moves about27cm.
花钟的独特之处是，它有着世界上最长的秒针，长2.5米，每秒钟要走动约27厘米。
The flower clock has the peculiarity to have the world's longest arm for seconds. It measures 2.5 meters. Each second it moves about 27 cm.
花钟的独特之处是，它有着世界上最长的秒针，长2.5米，每秒钟要走动约27厘米。
The flower clock has the peculiarity to have the world's longest arm for seconds. It measures 2.5 meters. Each second it moves about 27 cm.
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