速度与距离
双语例句原声例句
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许多跑步者借助他们的GPS表不刷新自己速度与距离。
Many runners swear by their GPS watches that constantly update pace and distance.
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由于 P 波和 S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
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其中，速度表示星系后退的速度，H0为哈勃常数，也即宇宙膨胀速率的参数，而距离指的是星系与相比较星系之间的距离。
H0 is the Hubble constant, or parameter that indicates the rate at which the universe is expanding; and distance is the galaxy's distance from the one with which it's being compared.
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It varies with the square of distance so it goes - in order to go twice as far it takes four times as long.
速度是与距离的平方正相关的--,如果要扩散两倍的距离要多花四倍的时间
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