最大汙染源，1燃煤取暖，2汽車尾氣，3盆地，4高低氣壓1時穩態。5冷暖氣流不交匯。

來源: 大江川於 2013-01-14 15:10:59 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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