闪电是由云层放电产生的。
太阳从云层里露了一下脸。
云层渐稀，透出了月光。
我们在云层上面飞行。
云层发出金色的光芒。
太阳消失在云层里。
飞机穿越云层。
他们的答案是把海水喷到云层上。
月光穿过云层缝隙照射下来。
大型客机在云层上面飞行。
我们讨论的是地球上所有云层的平均效果。
We are talking about the effect of all the clouds on earth averaged together.
云层正在翻卷而去。
厚厚的云层和乌云遮住了印度塔瑞格纳村的景色。
Thick clouds and an overcast sky obscured the view at the Indian village of Taregna.
为了阻止激光本身被击中，它不会直接指向云层。
To stop the laser itself being struck, it would not be pointed straight at the clouds.
当电子从云层底部涌向地面时，通道就开始形成了。
The formation of the channel is initiated when electrons surge from the cloud base toward the ground.
他们在天空中看到的光可能是来自地面反射到云层上的光。
The light they saw in the sky might have been light from the ground, reflected on to the clouds.
地球的气候系统不断试图在云层的降温和变暖效应之间取得平衡。
Earth's climate system is constantly trying to strike a balance between the cooling and warming effects of clouds.
金星云层上方的二氧化硫气体水平显示出巨大且非常频繁的波动。
The level of sulfur dioxide gas above Venus's clouds shows large and very frequent fluctuations.
它需要打开降落伞穿过云层下降，把GPS坐标发射到手机基站。
It would need to deploy a parachute, descend through the clouds and transmit a GPS coordinate to a cell phone tower.
这样一来，帮助云层形成的水分减少，没有什么可以蒸发以形成云层。
Then you have less moisture to help clouds form, nothing to evaporate for cloud formation.
这包括使用硫或硫化氢气溶胶，使二氧化硫形成云层，进而导致全球变暗。
This would involve using sulphur or hydrogen sulphide aerosols so that sulphur dioxide would form clouds, which would, in turn, lead to global dimming.
利用高速摄影技术，科学家们已经确定了闪电从云层到达地面有两个步骤。
Using high-speed photography, scientists have determined that there are two steps to the occurrence of lightning from a cloud to the ground.
森林里的日光质量随着植被密度、太阳照射角度和天空云层数量变化而变化。
The daytime quality of light in forests varies with the density of the vegetation, the angle of the Sun, and the amount of cloud in the sky.
当带负电和带正电的粒子流相遇时，就会形成一条连接云层和地面的完整通道。
When the negatively and positively charged streams meet, a complete channel connecting the cloud and the ground is formed.
显然，该地区有一些低空云层，但主要是飞行员和空中交通管制员之间的沟通失误。
Apparently, there were some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers.
这些碎片本身几乎不含硫，但天文学家相信，木星外层大气之下的云层中确实含有硫。
The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter's outer atmosphere does contain sulfur.
数世纪以来，许多人都对金星着迷，因为它有厚厚的云层覆盖——一颗所谓的神秘星球。
Many people have been fascinated about Venus for centuries because of its thick cloud cover—a so-called planet of mystery and all of that.
然后这个循环继续下去，雨水减少，土壤变干，植被减少，云层减少，雨水再减少等等。
Then the cycle continues, less rain, drier soil, less vegetation, fewer clouds, less rain etc.
来自云层的电子流与正粒子流相遇，而这些正粒子流通常来自于高而尖的结构，如金属旗杆或塔。
The stream of positive particles that meets the surge of electrons from the cloud often arises from a tall pointed structure such as a metal flagpole or a tower.
来自云层的电子流与正粒子流相遇，而这些正粒子流通常来自于高而尖的结构，如金属旗杆或塔。
The stream of positive particles that meets the surge of electrons from the cloud often arises from a tall pointed structure such as a metal flagpole or a tower.
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