入春(chūn )后(hòu ),随着(zhe )暖湿气(qì )流开(kāi )始活跃,其与冷(lěng )空(kōng )气“狭(xiá )路(lù )相逢”,就酝(yùn )酿出一场又一场的(de )春(chūn )雨。在浙江,3月当地雨(yǔ )水(shuǐ )较常(cháng )年同期偏少六成左右,其中丽(lì )水(shuǐ )庆元(yuán )、丽(lì )水青田、温州文成(chéng )等地的(de )日照(zhào )时(shí )数不足1小时,为有(yǒu )历(lì )史记(jì )录以来的同(tóng )期第一少(shǎo )。
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