柯林斯英汉双解大词典
escape velocity
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1.
N the minimum velocity that a body must have in order to escape from the gravitational field of the earth or other celestial body 逃逸速度
双语例句权威例句
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I mean, that's the whole point of escape velocity, right?
我的意思是，这是逃逸速度的全部意义所在，不是吗？
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Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.
简单地说，如果气体分子达到逃逸速度，它就能从一颗行星上“蒸发”。
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So we are burning up an enormous amount of fuel at every launch just to get the rocket up to what's known as escape velocity.
所以每一次发射我们都要耗费大量的燃料来让火箭达到所谓的“逃逸速度”。
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