| 释义 |
〔thunderhead〕The swollen upper portion of a thundercloud, usually associated with the development of a thunderstorm.雷雨云砧,雷暴云砧:雷云上部通常与雷暴的发展有关系的膨胀部分〔thunderstorm〕A transient, sometimes violent storm of thunder and lightning, often accompanied by rain and sometimes hail.雷暴:短暂且有时很猛烈的雷和闪电的风暴,通常伴有雨且有时下冰雹〔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 |