clear-air lightning 晴空闪电
air expansion lightning arrester 气膨胀避雷器 ; 气膨避雷器
Traditionally structures have been protected by the use of air terminals (Franklin Lightning Rods) and a network of downconductors connecting to an integrated grounding system.
传统上,我们使用一根置于空气中的金属终端【富兰克林避雷针】和一条与集成的接地装置连在一起的下导线路来保护建筑物。
Lightning flashed through the air.
闪电掠过长空。
The Mother Birch had hardly spoken these words than a terrible, deafening crack shook the air, and a sharp, hot tongue of lightning landed right on her trunk.
她的话音刚落,空中响起了剧烈的、可怕的响声,闪电的火舌正中她的树干。
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