Scientists have previously1 found signs of ice on the Moon and water vapour in its thin atmosphere.
科学家们此前已经在月球上发现了冰存在的迹象，也在月球稀薄的大气中发现了水蒸气存在的迹象。
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靠近地球表面的空气温度比高空的空气温度要高一些，因此，当水蒸气漂浮到高空时就会被冷却。
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Against a pale bule evening sky, the vapour trails stood out clearly.
在淡蓝色的夜空衬托下, 缕缕云烟清晰可见.
The continuous SiC fibers coated with B 4 C using chemical vapour deposition ( CVD ) were made.
采用化学气相沉积 ( CVD ) 方法,在连续SiC纤维 表面沉积一层B4C涂层.
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Then somewhere in the night a radiance again , like a vapour.
苍茫的夜色,躁动的浮云,斑驳的月光,褐色月晕, 浑然成为一体.
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西南风低空急流为暴雨提供了水汽输送，并且通过强垂直运动向对流层中上层输送水汽；
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Apart from selenium and vapour-deposited germanium and silicon, glasses are at least diatomic.
除了硒和汽相沉积的锗和硅之外, 玻璃至少是二原子的.
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This product had strong property of separation and recovery of organic dissolvent and vapour.
这种产品对有机溶剂和有机蒸气有很强的分离、回收性能.
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A liquid fuel which easily evaporates and turns into vapour is called " volatile ".
易于蒸发和变成气体的液体燃料叫作 “ 挥发性 ” 燃料.
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