cirrocumulus

剑桥词典

a type of cumulus (= a tall , rounded , white cloud with a flat base ) formed in a very thin layer and often in a regular pattern
卷积云（一种稀薄的高空云，由一系列规则排列的白云堆积形成,底部扁平）
比较
altocumulus
stratocumulus 返回 cirrocumulus