您要查找的是不是：
- semitransparent cloud cover 薄云覆盖
- The stumbling block is the mechanistic prediction of cloud cover. 麻烦的是对云量的机械预报。
- Fog and low cloud cover are expected this afternoon. 预计今天下午有雾和低空云层。
- The stumbling block is the mechanistic prediction of cloud cover . 麻烦的是对云量的机械预报。
- Venus's cloud cover is a great reflector of sunlight. 金星的云层能够大量的反射阳光。
- Grant eyed the broken cloud cover overhead with mixed feelings. 格兰特注视着残云飘过头顶，思绪万千。
- A watery sunlight shone down through an opening in the fast-moving cloud cover. 一束淡淡的阳光从飞快移动的乌云缝隙间投射下来。
- The stars hazed over as a large cloud covered the night sky. 一大片云遮住了夜空，这时星星变得朦胧起来。
- And Moses went up into the mount, and a cloud covered the mount. 摩西上山,有云彩把山遮盖。
- When they came downstairs, The radio was still on. Dawn had come up, but the sun lay behind a thin cloud cover. 他们走下楼梯,那收音机还在播放着。黎明已经降临,太阳却还躲在一层薄薄的彩云中。
- The lunar appeared haloes as thick cloud covered the moonlight . 厚厚的云层遮住了月光，只留下一圈朦胧的光晕。
- Variations in Low Cloud Cover over the United States during the Second Half of the Twentieth Century. 世纪下半叶美国低云覆盖的变化。
- A watery sunlight shone down through an opening in the fast-moving cloud cover . 一束淡淡的阳光从飞快移动的乌云缝隙间投射下来。
- Crewless ships wander the oceans spewing saltwater into the air to increase cloud cover. 把成千上万的反射镜安放于地球同步轨道上，以期拦住太阳光；
- Cloud cover in some areas prevented people from fully savoring the phenomenon.Still, many were awed. 部分地区被云遮住使得人们无法充分欣赏这一现象，不过，日全食仍震撼了很多人。
- Does there any living things below the cloud covering layer of Venus? 覆盖着金星的云层下面有没有生物?
- Clouds cover the sun inbetween high rise office buildings. 云和办公楼图片 Clouds and Office Buildings.
- In climates with substantial cloud cover on a significant number of days of the year, systems relying on reflected-beam sunlight are inappropriate. 在一年中有长时间连续阴天的气候条件下,系统依靠反射取光是不合时宜的。
- On nights with moonshine or mild cloud cover, the telescope instead uses a pair of spectrographs to obtain spectra, and therefore redshifts, of 608 objects at a time. 而在有月光或薄云的夜晚，望远镜则利用一对摄谱仪摄取光谱，可同时测定608个物体的红移。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
