maxima often
maxima经常
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Two wind maxima with jet-stream characteristics often occur, one above the other, in the lower troposphere by the south side of therainstorm area over South China in summer.
华南暴雨区南侧对流层中下层常常同时存在两个大风层且各具急流的特征。
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