单词roll cloud
un.: 滚轴云
网络: 卷轴云；滚筒状云；滚筒云
滚轴云
When this happens along a front, a roll cloud can form, often with air actually circulating along the horizontal axis of the cloud.
在这种情景发生之前，云卷往往可以形成与实际横向运动云的循环空气。
This amazing picture shows a rare phenomenon called a roll cloud which tend to form ahead of a cold front and can stretch for miles.
这张惊人的图片展示了一种叫做云卷的罕见现象，它往往形成于冷锋之前，并能延伸数英里远。
A roll cloud is "a long, low tube of a cloud, " sometimes smooth, sometimes bumpy.
卷云是“一种低矮的长管形云彩，”它时而平滑，时而臃肿。
When this happens uniformly across a large front, a roll cloud may form.
由于同时发生在一个面积广阔的锋面，于是就形成了这种卷云。
Ink pen go scales, word was roll cloud word water. Bess.
笔走鳞惊卷墨潮，词云字水冲碧霄。
a roll cloud, called Morning Glory, over northern Queensland, Australia;
澳洲昆士兰北部天空中被称之为晨曦的卷云；