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1·Photo Gallery: Clouds Fluffy altocumulus undulatus clouds stain the sky red above a row of trees.

云彩的图片画廊。蓬松的高积云波状云染色天空呈红色在一排树木的上面。

2·Ripples of altocumulus or cirrocumulus clouds-resembling the markings of a king mackerel-give the phenomenon its name.

波纹的高积云或卷积云云彩——相似的记号，国王鲭鱼给这现象以它的名字。

3·Altocumulus clouds are small cumulus clouds that are knitted tightly together. These storm clouds often darken the land.

高积云是紧紧地交织在一起的小积云。这些雷雨云常常使大地一片昏暗。

4·They are referred to as alto clouds and bear such names as altostratus, which are flat, or altocumulus (pictured), which are puffy.

它们被称作“阿尔图”(中音部——译注)云，包括平坦的高层云和肥胖的高积云(上图)。

5·Altocumulus lacunosus. “An elusive prize for any cloud collector,” lacunosus clouds form when sinking pockets of air create holes in a cloud layer.

高积网状云。 “对于所有的观云爱好者来说，能欣赏到这种难以捉摸的云彩无异于恩赐，”当下沉的气团在云层中形成空洞时，网状云便出现了。