1) water demand and supply rate
水分供需率
1.
Based on the theory of risk analysis, using the data related to water demand and supply of winter wheat in recent 40 years in North China, the risk probabilities of the different water demand and supply rates for non- irrigation or under conditions of irrigation for 1~5 times with the amount of 675 m/hm2 every time during the whole growing period of winter wheat were estimated.
依据风险原理,利用北方冬麦区近40年冬小麦水分供需的相关资料,基于灌水定额为675m3/hm2,估算了冬小麦全生育期无灌溉、灌1~5水条件下不同水分供需率等级出现的风险概率。
3) crop water supply and demand analysis
水分供需分析
1.
Based on meteorological data of 48 years from three weather stations at different climatic areas, the applicability and possible error extents of average ET 0 method used in crop water supply and demand analysis are discussed systematically in this paper.
以 3个气象站的 4 8年气象资料为基础 ,详细分析了作物水分供需分析中使用平均 ET0 的可行性 ,以及由此可能带来的误差程度。
4) water resources demand-supply analysis
水资源供需分析
1.
A numerical model considering water supply by the South-to-North Water Transfer Project is established for water resources demand-supply analysis for Ji nan City.
分析济南市的水资源开发利用现状,预测了中长期需水态势,构建了考虑南水北调供水情况下的济南市水资源供需分析数学模型。
5) water supply-demand equilibrium
水分供需状况
1.
Then the water supply-demand equilibrium was analyzed.
根据气象资料,运用彭曼公式(Penm an's form u la)和桑斯维特公式(T horn thw a ita's form u la),计算并分析了晋南黄土高原刺槐林的潜在蒸散量;结合2,3,5,7,13年生刺槐的耗水特性系数,计算得出其生长季(5-10月份)的需水量和需水总量;最后分析了刺槐林地水分供需状况。
补充资料：电导率(见电阻率)
电导率(见电阻率)
conductivity
d!日nd日O}已电导率(eonduetivity)见电阻率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条