| 单词 | polar-front theory |
| 释义 | polar-front theory [`pō·lǝr ¦frǝnt ´thē·ǝ·rē] METEOROLOGY A theory whereby a polar front, separating air masses of polar and tropical origin, gives rise to cyclonic disturbances which intensify and travel along the front, passing through various phases of a characteristic life history. |
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