这些含水层在一万多年前就饱和了，现在不再重新补充水分了。
These aquifers became saturated more than 10,000 years ago and are no longer being recharged.
蜂蜜是糖的饱和溶液，故可吸收水分，从而使细菌脱水，令其无法生存和繁殖。
Because honey is composed of saturated sugars, it sucks up water, depriving bacteria of the liquid they need to survive and multiply.
如果含水量达到饱和状态的空气遇到了非常冷的另一团空气，空气中的原先呈雾状的水分就开始凝结变成小的雪粒。
If a stratum of air saturated with moisture meets a very cold one, the fog begins to freeze, and becomes specks of snow.
另一方面，如果你见到一条常常的痕迹在空中持续一段很长的时间，这意味着大气层的水汽已经饱和不能在继续吸收多余的水分了。
On the other hand, if you see a contrail that lasts a long time, this means the upper atmosphere is already saturated with as much water vapor as it can hold.
由于残余水分受到某种引力的束缚，其饱和蒸汽压则是不同程度的降低，因而干燥速度明显下降。
Due to residual moisture by a gravitational bound, the saturated vapor pressure is reduced in different degree, thus drying rate dropped significantly.
施肥对芨芨草叶片含水量影响不大，但造成水分饱和亏增加。
Fertilizer influenced trivially on leaf water content, while intensified markedly on the water saturation deficit.
叶片相对含水量、水分饱和亏、自由水、束缚水含量，细胞汁液浓度也同土壤PF值显著相关。
Relative water content (RWC), water saturation defi-cit (WSD), free water, bound water and cell SAP concentration were all correlated with PF.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
干旱锻炼能明显降低临界饱和亏和植株需水度，使植株含水量在相同的土壤水分条件下得到改善。
Droughtpractice sharply decreased critical saturation deficiency and plant humidity needed (PHN) which made the plant water content improved under the condition of the same soil moisture.
而品种间切叶自然失水速度和叶片水分饱和亏的差异有待进一步研究。
The difference in the rate of nature lose water of cutting leaf and the water saturation deficit of leaf needed to be further studied.
从形态特征、根冠比、叶片解剖构造、叶片保水力、水分饱和亏等方面分析了11个树种对干旱的适应性特征。
Using morphological characteristics, root-shoot ratio, anatomical structure of leaves, leaf water holding and WSD analyzed the water holding ability of 11 tree species.
这种作用是可能的，因为空气中有那么饱和，即声波可以导致水分子的凝聚。
This effect is possible because the air there is so saturated that sound waves can cause water molecules to condense.
土壤水分特征函数空间异质性是定量研究土壤非饱和带水分运动以及溶质运移的先决条件。
Spatial variability of soil water retention function is a primary prerequisite for quantitative research on water movement and solution transfer in unsaturated zone.
基于饱和下渗理论和考虑新入渗雨水驱替旧土壤水分的作用，根据力学原理提出了一个简明的入渗模型及计算下渗锋面处毛管吸力的方法。
In this paper, a simple infiltration model is proposed on the basis of a theoretical consideration of infiltration and the displacement of existing soil water by newly-infiltrating rainfall.
内摩擦角和与水分状态相关的饱和度的关系是强非线性的，和与密度状态相关的饱和度的关系是弱非线性的。
Internal friction Angle has a strong nonlinear relation with moisture state related saturation and a weak nonlinear relation with density state related saturation respectively.
土壤水分特征曲线是模拟水分和化学物质在非饱和土壤中运移的关键参数。
Soil water retention characteristics served as a vital parameter in modeling water movement and chemical transport in unsaturated soil.
非饱和土壤中的水分是联系地表水与地下水的纽带，是田间作物赖以生存的源泉。
Unsaturated soils water is the connection of surface water and ground water, it is the source that the field crop living depends on.
本文介绍了求解非饱和土壤中热量和水分耦合传输问题的一种数值方法——积分有限差分方法(IFDM)。
In this paper, an integrated finite difference method (IFDM) for numerical analysis of transient coupled heat and moisture flow in unsaturated soils is described.
在此基础上建立了基于土壤孔隙形态学特征的随机网络模型，在孔隙尺度模拟了土壤中的水分运动过程，并预测了近饱和土壤水分特征曲线。
A spatially-random network model by using measured pore morphology was then set up to simulate the pore scale flow processes, and to predict the soil water retention curve near saturation.
当空气中所含水分在一定温度下处在最大蒸发量时，就说空气中的水分饱和了。
Air is said to be saturated with water vapor when it contains the maximum amount that will evaporate at a given temperature.
本文简述了标定的原理、田间土壤水分特征曲线和非饱和导水率的标定方法，还给出了水分运动参数标定的实例。
In this paper, the concept and the method of scaling are described, and some examples of scaling of soil water characteristic curve and unsaturated hydraulic conductivity are given.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
非饱和带水分运移规律的研究对“四水”转化研究、节水研究、地下水资源的形成与损失研究等提供了可靠的理论依据。
The dynamic laws governing the water movement in unsaturated zone provide a reliable theory for water transform, water saving and groundwater formation and ullage.
非饱和带土壤水分状况在实验流域研究中占相当重要部分。
The regime of unsaturated soil moisture is an important part of the runoff cycle in the Experimental basin.
冬小麦瞬时水分利用效率与饱和差呈极显著负相关，达到0.01显著水平。
Negative correlation between Instantaneous WUE and saturation deficit was significant at 0.01 level.
结果表明，该模型的计算值与实测值吻合的非常好，说明通过优化法确定非饱和土壤水分特征曲线是可行的。
The result shows that the values of computation agree with the experimental data fairly well through comparing calculating soil moisture characteristic curve with the experimental one.
存在因应水分状态变化和因应密度状态变化的两类饱和度变化过程。
There are two patterns of varying process of saturation, one is related with variation of moisture state, other is related with density state.
非饱和土中水分迁移通常有液态水和气态水迁移两种形式。
Usually there is two forms of water transfer which is water vapor transfer and liquid water transfer in unsaturated soil.
非饱和土壤水分扩散率是研究土壤水分运动规律必不可少的基本参数之一。
Unsaturated soil water diffusivity is a necessarily basal parameter to study soil water movement laws and quantificationally analyze soil water movement with method of mathematical simulation.
非饱和土壤水分扩散率是研究土壤水分运动规律必不可少的基本参数之一。
Unsaturated soil water diffusivity is a necessarily basal parameter to study soil water movement laws and quantificationally analyze soil water movement with method of mathematical simulation.
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