常見例句雙語例句The main results are obtained as follow:the pre-flood season in South China is composed of the frontal precipitation period and the summer monsoon precipitation period.分析發(fā)現(xiàn)，華南前汛期降水由鋒面降水和夏季風降水兩個時段組成。The formula was used to calculate the precipitation efficiency and the precipitation stimulation possibility of frontal clouds du-ring the first rainy season in South China.用該公式計算華南前汛期鋒面云系自然降水效率，并探討人工播云的可能性。In the mid-upper layer of troposphere, the high meridional temperature gradients lies in the southern latitude while the low in the northern part during the frontal precipitation period .對流層中上層，華南前汛期鋒面降水時段，經(jīng)向溫度分布呈明顯的南高北低形勢； 返回 frontal precipitation