英语词汇upper level trough怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	upper level trough
释义	upper level trough 简明释义高空槽网络释义 1 ?高空槽 ... upper level cyclone 高空气旋 upper level trough 高空槽 upper limb 上外圈 ... 短语 1 upper-level trough 气象高空槽 2 upper level low trough 高空低槽双语例句 1 Through the analysis, it is shown that the Matsa s extratropical transition and the re-intensification are due to the intrusion of cold air from the upper-level trough into the typhoons circulation. 以一个在陆上长久维持并最终演变成温带气旋的登陆台风“麦莎”为研究对象，通过对其北上变性过程的分析发现，台风与中高纬西风槽的相互作用使得冷空气侵入是其变性加强的原因。
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