英语词汇“upper trough”的翻译、意思、用法、释义-英汉汉英双解词典

单词	upper trough
释义	upper trough 基本例句高空槽 The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.分析指出，该飑线系统是由高空槽前型的上干下湿引起的不稳定强对流天气。
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