annual rainfall factor 中文意思是什麼
annual rainfall factor
解釋
年雨量系數-
This exceptionally dry month was the main contributing factor of the below - normal annual rainfall. the very dry weather in july was associated with the ridge of high pressure over the pacific being exceptionally strong and extending west to cover south china, bringing a long spell of fine weather to hong kong from late june to late july
這主要是由於二零零三年七月是有紀錄以來最少雨的七月份,只有正常雨量的三分一左右,在六月底至七月底期間一道異常強大的高壓脊由太平洋向西伸展覆蓋中國南部,令香港長時間持續天睛。
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