The function of the boiler's water-supplying automatic control system is to make the amount of evaporation match the Vapor's water level in provision of the scope and raise the safety and the economy of the boiler and the steam turbine.

汽包鍋爐給水自動控制的任務是使鍋爐的給水量適應鍋爐的蒸發(fā)量，以維護汽包水位在規(guī)定的范圍內(nèi)，以提高鍋爐和汽輪機的安全性和經(jīng)濟性。

The statistic shows the amount of evaporation on surface water is decreasing.

統(tǒng)計資料結(jié)果表明，水面蒸發(fā)量呈明顯減少趨勢。

The annual mean amount of evaporation is larger than that of precipitation, and their values are 888.0 mm and 677.2 mm, respectively, so the annual mean net moisture flux is-210.8mm;

青島沿海年平均蒸發(fā)量大于降水量，量值分別為888.0mm和677.2mm，年平均凈水汽通量為-210.8mm；

Analysis of spatiotemporal distribution and tendency of amount of evaporation in Anhui Province

安徽省蒸發(fā)量時空分布及變化趨勢分析

The amount of evaporation in Yangtze basin and Three Gorges zone will increase only by several thousandths;

興建三峽水庫后，流域及三峽區(qū)間的蒸發(fā)量只增加了千分之幾；

A study of the amount of evaporation and the loss of heat for evaporation in China

我國陸面蒸發(fā)量和蒸發(fā)耗熱量的研究

The results show that the heat conduct loss will increase and the amount of evaporation will decrease while the electron beam width is too narrow and the electron beam power density is above 15kW/ cm 2.

并得出電子槍束寬過窄，電子槍功率密度高于15kW／cm2時，會使導熱損失增加、蒸發(fā)量減少的結(jié)論。

Improved method for computing amount of evaporation and potential evapotranspiration

計算蒸發(fā)量蒸散發(fā)能力的改進方法

The characteristics of arid and semi-arid Northwest China includes great amount of evaporation, small amount of rainfall and light and heat resources, these are necessary conditions for exploitation and development of artificial oasis.

中國西北屬干旱、半干旱地區(qū)，于是蒸發(fā)量大、降雨量小，光熱資源充足為當?shù)氐闹饕獨夂蛱卣鳎瑸槿斯ぞG洲的開發(fā)與發(fā)展準備了前提。