cumulonimbus cloud

1. The decay of a single cell cumulonimbus cloud is rapid and seldom exists for more than half an hour.
   积雨云云消逝飞快，它的存在几乎不会超过半小时。
2. A cumulonimbus cloud rises high into the sky and usually produces storms.
   积雨云上升到空中，通常会带来暴风雨。
3. A series of numerical experiments have been done to test the seeding effect of artificial icecristals or raindrop embryos using a one-dimentional time dependent cumulonimbus cloud model.
   本文用一维时变积雨云模式对一块积雨云进行了播撒人工冰晶或水滴的多种数值试验，得到了增加降水或减轻冰雹灾害等效果。
4. The sunset scene shows a classic cumulonimbus cloud formation.
   夕阳现场显示，一个典型的积雨云云层的形成。
5. A Numerical Simulation on Natural Precipitation Process and Cloud Seeding in Cumulonimbus Clouds with Warm Cloud Base
   暖底积云自然降水过程和人工催化个例数值模拟
6. Combined the fractal dimension with the 2 order statistical features of Gray Gradient Co occurence Matrix ( GGCM) of 4 kinds of basic clouds pictures ( Cirrus, Cumulus, Cumulonimbus and Layer Cloud), the clouds are classified and recognized.
   将4种基本云类（卷云、积雨云、积云和层云）的分数维和灰度梯度共生矩阵（GGCM）的二次统计特征结合起来，对云类进行分类与识别。
7. Numerical simulation of microprocesses in cumulonimbus cloud(ⅱ) case studies of shower, hail and heavy rain
   积雨云中微物理过程的数值模拟&（二）阵雨、冰雹、暴雨的个例研究
8. Vertical wind shear made the mean flow kinetic energy into eddy kinetic energy, stimulating the generation of gravity waves. When gravity waves passed through developmental cumulonimbus, increasing the ascent speed in the cloud, making the instability released, thereby produced precipitation.
   垂直风切变使得平均气流动能转化为扰动动能，激发了重力波的产生，重力波通过发展的积雨云时，加大云内的上升速度，使得不稳定能量得到释放，从而产生降水。

noun

1. a dark cloud of great vertical extent charged with electricity

   Synonym:    cumulonimbusthundercloud