当风将含有冰晶的云朵吹成长长的细丝状时，毛状云便形成了。

When the wind draws ice-crystal clouds into long, fine filaments, they are called fibratus.

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帽云是毛状云的一种个例，它通常成形于山顶，其大小多变，例如上图中延展幅度极大的帽云“就如同是婚礼表演上滑稽岳母的装饰一般。”

Caps, an example of lenticularis clouds, typically form at mountaintops. Sometimes a cap is small and sometimes, like this, "it splays out in a full mother-in-law-at-the-wedding extravaganza."

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通过卫星监测到的六米高的羽毛状尘埃云在图片中看似黄绿色的漩涡。

The six-mile-high Chinese dust plume detected by CALIPSO appears as yellow-green swirls in this image.

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