| 词汇 | cirrus |
| 释义 | cirrus noun[ U ] environment specializeduk /ˈsɪr.əs/ us /ˈsɪr.əs/ a type of light, feathery cloud that is seen high in the sky卷云 Compare cumulusspecialized nimbusspecialized stratus Australian Scenics/Photolibrary/GettyImages Precipitation: clouds, dew, fog & steam billow brume chemtrail cloud-capped cloudily cloudlessly haze haze over lowering misty moisture nimbus overcast pall Scotch mist steam (something) up steamily sub-visible vapour trail vog Cumulus and cirrus clouds are white. When cirrus clouds are in the sky, it means the weather is going to change soon. The eighth cirrus is by itself, near the base of the largest posterior cirrus. There was a wide ring around it, and he remembered noticing the wisps of cirrus clouds gathering overhead through the afternoon. Examples of cirruscirrus The white clouds (usually sparse) were also widely regarded as being composed of tiny crystals of water ice, rather like cirrus in our atmosphere. The cirrus pouch is small and stout, lying immediately and entirely in front of the ventral sucker. No spines are present in the ductus or cirrus. The cirrus-pouch is a conspicuous arcuate structure lying immediately in front of the ventral sucker. The cirrus-pouch is of simple type and is situated over and in front of the right anterior quadrant of the ventral sucker. The vesicula seminalis, which lies alongside the cirrus pouch and somewhat behind it, is a little smaller than the posterior portion of the pouch. This lies behind the cirrus-pouch and is considerably inflated. The cirrus has a smooth surface with no visible armature. The cirrus sclerites first appear beneath the outer epidermal membrane as an electron-dense area which subsequently increases in breadth towards the base. This, in turn, would increase the cirrus cloud cover, effectively creating a positive feedback circuit. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In winter, the cirrus cloud cover did not vary appreciably from day to night. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Balloon-carried hygrometers give information on the humidity of the cirrus cloud but are not accurate enough to measure the depth of the cloud. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of these extraterrestrial cirrus clouds are composed of ammonia or methane ice rather than water ice. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Once aloft, air flows away from the storm's center, producing a shield of cirrus clouds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The variety of intortus clouds is specific to cirrus clouds, and they appear as interwound strands of cirrus clouds with a purely random pattern. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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