1.The highest flying clouds here are cirrus clouds which can be found at altitudes of 20,000 to 40,000 feet.

这里最高的飞行是，可以在2万到4万英尺的高度找到。

2.Slender sheaves of cirrus clouds were followed on the horizon by layers of nimbocumulus. Other low clouds fled swiftly.

天际边一层层散开的的后面，紧随团团乌，还有一飞快地掠过。

3.On any given day odds are you'll see several contrails, some slowly spreading out to form high, cirrus clouds.

每天我们都有机会看到航迹，有会慢慢散开形成高空。

4.The last new formation was cirrus intortus, added way back in 1951.

最后一个新的形态是，早在 1951 年就已添加。机翻

5.AACPs are the wispy, cirrus clouds that form near the overshooting tops.

AACP是在超冲顶部附近形成的纤细。机翻

6.Howard believed that all clouds belonged to three distinct groups: cumulus, stratus and cirrus.

霍华德认为所有的属于三个不同的类别：积、层和。机翻

7.There were high cumulus clouds and enough cirrus above them so that the old man knew the breeze would last all night.

积堆聚得很高，上空还有相当多的，因此看出这风将刮上整整一夜。

8.There are five primary cloud types: stratus, cumulus, stratocumulus, cumulonimbus  and cirrus, each of which are subdivided into different genera based on altitude.

有五种主要的类型：层、积、层积、积雨和，每种都根据海拔高度细分为不同的属。机翻

9.A high, whispy cirrus cloud that descended and spread into a sheet was named cirrostratus, while groups of fluffy cumulus clouds that joined up and spread were named stratocumulus.

原本在高空中的纤薄的层下降并且扩散成薄片状，被命名为层。由大量蓬松的积聚集并扩散而成的，则命名为层积。

10.Storms that were strong enough to make these features--called above anvil cirrus plumes, or AACPs-- were also more likely to have severe tornadoes, large hail, and high winds.

足以形成这特征的风暴——称为铁砧羽上方，或 AACPs——也更有可能产生强龙风、大冰雹和大风。机翻

11.In fact, all clouds belong to one of three principle types to which Howard gave the names: cirrus, Latin for tendril or hair, cumulus, heap or pile, and stratus, layer or sheet.

实际上，所有的属于三种基本形式之一，霍德华给它们命名为：，来自于拉丁语中的须或头发，积，堆积或积累，层，层叠或片。

12.He looked at the sky and saw the white cumulus built like friendly piles of ice cream and high above were the thin feathers of the cirrus against the high September sky.

他望望天空，看见一团团白色的积，形状象一堆堆可心意的冰淇淋，而在高高的上空，高爽的九月的天空衬托着一团团羽毛般的。

13.His tail floats now behind him, now above him, level or gracefully curled like a wisp of cirrus cloud, every hair in its place, clean and shining and radiant as thistle-down in spite of rough, gummy work.

像一缕一样水平或优雅地曲， 每一根毛发都各就各位， 干净、闪亮， 尽管经过了粗糙、粘稠的工作， 但仍像蓟绒一样闪闪发光。机翻