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- Sometimes these clouds are so extensive that they are virtually indistinguishable from one another, forming a sheet of cirrus called cirrostratus. 卷云是高云的一种，是对流层中最高的云，平均高度超过6000公尺。
- cirrostratus nebulous 薄幕卷层云
- cirrus fibratus 毛卷云
- fibrous","fibratus,fibrosus"," 纤维状,须发状"
- cirrostratus nebulosus 薄幕卷层云
- cirrostratusn. 卷层云
- cirrostratus cloud 卷层云
- fibratus 毛状云
