| 单词 | 积雨云 |
| 释义 | 〔tornado〕A rotating column of air usually accompanied by a funnel-shaped downward extension of a cumulonimbus cloud and having a vortex several hundred yards in diameter whirling destructively at speeds of up to 500 miles (800 kilometers) per hour.龙卷风，陆龙卷：一种纵向的气旋，伴随有倒漏斗形的积雨云，涡流直径达几百码，以每小时五百英里（八百公里）的速度移动，其旋转具有极大的毁坏性〔downburst〕An extremely powerful downward air current from a cumulonimbus cloud, typically associated with thunderstorm activity.下降气流：多与雷雨相关的来自积雨云的极强下降气流〔thundercloud〕A large dark cloud charged with electricity and producing thunder and lightning; a cumulonimbus cloud.雷云：大片充满电且能制造雷声和闪电的乌云；积雨云〔cumulonimbus〕An extremely dense, vertically developed cumulus with a relatively hazy outline and a glaciated top extending to great heights, usually producing heavy rains, thunderstorms, or hailstorms.积雨云：一种极其浓密的、垂直扩展的积云，其轮廓比较模糊，顶部覆有冰晶且向上伸入高空，通常能产生大雨、雷暴或雹暴 |
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