downburst 中文意思是什麼
downburst
解釋
【氣象學】下向風暴〈指可能危及飛機的急速向下氣流〉。-
The impact of catastrophic winds such as typhoon, downburst, and tornado on transmission lines is introduced, including collapse of transmission towers
重點介紹了臺風、颮線風、龍卷風等強風暴下輸電線路所受的影響以及輸電塔倒塌等情況。 -
The three - dimensional cloud model with hail - bin microphysics could simulate the characteristics of the severe storm such as life cycle, rainfall distribution and diameter of hail well, and also could produce strong downdraft and wind shear ( downburst )
而利用三維強冰雹雲模式對此次強風暴的生命史、降水分佈、降雹的大小等要素做了較好的模擬，並能夠模擬出伴隨強風暴過程所產生的強下沉氣流和及地面強風速切變（下擊暴流） 。 -
The mechanism of the downburst formation was also investigated based on the cloud microphysics of the simulated storm and it was found that this downburst was primarily produced by hail loading, and enhanced by hail melting and rain evaporation. and the loading and the melting of hail played a very important role in producing the downburst. the gale at the surface was caused by the severe downburst
從雲微物理學角度分析了此次局地性大風的形成原因，認為由高空冰雹粒子的拖曳產生的負浮力作用是促發強下沉氣流產生的主要原因，其次是冰雹的融化和雨水蒸發冷卻對下沉氣流起加速作用，冰雹的拖曳和融化作用對下沉氣流具有決定性的作用。 -
Typical variable windfield models, such as large scale steady wind flow, downburst, turbulence, airflow over mountain, are developed and their physical specialities are discussed. furthermore, simplex modules are integrated to form complex model. facticity and application technique to flight simulation are discussed
討論了以下幾種典型風場模型（大尺度均值風模型、 dryden紊流模型、微下擊暴流模型和過山氣流模型）的物理特徵與建模方法，並對單一模型進行復合，建立變化風場模型庫，最後討論了各種模型的真實性與如何應用於飛行模擬； 3
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