A cloud is a condensation of water vapour in the atmosphere.
云是由大气中的水蒸气凝结成的。
When water vapour condenses into cloud droplets it gives up energy and warms the surrounding air.
当水气凝结成水滴时，能量会被释放出来，使得周围的空气变暖。
But this cloud created by a U.S. Navy Super Hornet off the Peruvian coast is known as a 'shock collar' or 'vapour cone', created in certain atmospheric conditions at high speeds.
但这团雾气的的确确是由美国海军从秘鲁海岸起飞的超级大黄蜂所制造出来的，即一般所谓的“冲击领”或“蒸汽锥”，在某些大气条件下飞机在高速飞行时就会产生这种现象。
At any rate, the cloud is not simply “water vapour”, as Larry Ellison, the boss of Oracle, a software giant, has deflatingly suggested.
无论如何，云绝不仅仅是“水蒸气”—软件巨头Oracle的首席执行官拉瑞诶里森（Larry Ellison）令人气馁地建议道。
It was created by light from the moon shining through cloud vapour suspended 10, 000ft up the rim of a volcano in Hawaii.
在夏威夷的一座火山上方10000英尺处的高空中，月光穿越云层雾气形成了一道彩虹。
That does not change the total amount of cloud (which is controlled by the amount of water vapour in the atmosphere). But having more, smaller droplets does increase a cloud's reflectivity.
盐颗粒增加了，小水滴的水量也就增加了，这并不能改变云的总量(其总量受大气层中水蒸气数量多少的影响)，但是更多更小的水滴的确能增强云层的反射度。
A cloud is a mass of vapour in the sky.
云是天空中的水汽团块。
A cloud is a condensation of water vapour.
云是由水蒸汽凝缩而成的。
The ground effective radiations are calculated based on the ground temperature. air temperature. water vapour pressure and total cloud cover.
再利用地面温度、气温、水汽压和总云量，计算得出福建省各地的地面有效辐射的月、年平均辐照度。
The ground effective radiations are calculated based on the ground temperature. air temperature. water vapour pressure and total cloud cover.
再利用地面温度、气温、水汽压和总云量，计算得出福建省各地的地面有效辐射的月、年平均辐照度。
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