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1·SONGDA finally turned into an extratropical cyclone as it reached the southern coast of Honshu, Japan.

桑达最后在到达日本本州南部时演变为温带气旋。

2·North Pacific extratropical cyclone is an important weather system severely threatening the ships sailing on high latitude routes.

北太平洋温带气旋是对航行在北太平洋中高纬航线上的船舶构成严重威胁的重要天气系统。

3·In this paper the correlation is analysed between the sea surface temperature (SST) of the North Atlantic and the extratropical cyclone in East Asia.

本文分析了北大西洋海温场与东亚各月温带气旋个数的相关。