| 1. | Usually there is two forms of water transfer which is water vapor transfer and liquid water transfer in unsaturated soil
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。 |
| 2. | The ratio of water vapor transfer contrasting with admixture transfer reveals that usually water vapor transfer can not be neglected
气态水迁移量占混合迁移量的比例数值表明，通常非饱和土水分迁移中气态水迁移是不可忽视的。 |
| 3. | The amount ratio of water vapor transfer contrasting with admixture transfer is related to the value of water content , the water content gradients and the soil category
气态水迁移量占混合迁移量比例数值与土性、含水量水平和含水量梯度有关。 |
| 4. | The thesis studies the theories of water vapor transfer in unsaturated soil , and gets the water contents equations of water vapor transfer in unsaturated soils
本论文进行了非饱和土气态水迁移的理论研究，得到非饱和土中气态水迁移引起的含水量变化方程。 |
| 5. | When the experiment time prolongs , the amount of water vapor transfer increases a little , but the amount of admixture transfer increases obv iously , so the increase amount of admixture transfer mostly come from liquid water transfer
当实验时间增长时，气态水迁移量略有增长，而混合迁移量增长较为明显，这时迁移量的增加主要来源于液态水的迁移。 |
| 6. | The analysis of persistent heavy rain in south china is performed using the daily precipitation data of 45 stations in south china and the ncep / ncar reanalysis daily data from 1958 to 2004 . 157 persistent heavy rains in south china are divided into three categories according to water vapor transfer , unstable energy and lifting condition , and their formation mechanism are discussed
摘要利用1958 - 2004年ncep / ncar全球逐日再分析格点资料和同期我国华南地区45站的逐日降水资料，从水汽条件、不稳定能量及抬升条件对发生在华南地区的157个连续性暴雨进行分析，并结合各自的爆发时间，对暴雨进行分类，讨论了不同类型华南持续性暴雨的形成原因。 |
| 7. | Three passages of vapor transfer are related to the regional precipitation , especially the one carrying water from the bay of bengal . mixed cold and warm cloud portions are favorable for " catalysis - water supply " . the duration and rainfall - hit area are about half the lifecycle and rainbelt size , respectively
；降水天气的主要水汽输送路径有三条，以来自孟加拉湾的西南水汽输送带对降水最为有利；云系以冷暖混合云体为主，具有发生“播撒-供应”机制有利的宏观云体条件；云系降水的时段和面积一般只有云系生命期和面积的一半。 |
| 8. | Membrane distillation is an important branch of membrane separation technology which employees a hydrophobic microporous membrane for the separation process . during md process , feed contacts with one side of membrane , after water evaporates on hot side , vapor transfers to cold side under pressure drive , where vapor is condensed on cooling wall and then collected or removed
膜蒸馏技术是膜分离技术中的一个重要分支，它是指利用一疏水性的多孔膜，膜热侧与待处理液直接接触，待处理溶液中的水在膜热侧汽化后，气体在压强差的推动下，通过膜孔传递到膜冷侧，冷凝后收集或除去的一种分离技术。 |
| 9. | Thus it makes various weathers at definite region . by analysis physical diagnose quantities , we can easily find that the vertical movement , the vapor transfer , the stability at t - logp chart , all related with the precipitation when rainstorm occurs . they gave plus effects to the rainstorm
通过对物理量的分析可以看出，降水发生时的垂直运动场、水汽通量、 t - logp的稳定度参数等物理量值，非常有利于暴雨的产生、发展和维持，也就造成了这次辽西地区大范围的暴雨过程。 |
| 10. | Then this paper devises experiments to research on the laws of water vapor transfer in unsaturated soil , studies the amount of water vapor transfer under different water contents , different water content gradients , different densities , different transfer time and the difference between loess and sands , studies the ratio of water vapor transfer contrasting with admixture transfer , and which can make us judge the importance of water vapor transfer in unsaturated soils by intuition
进而论文设计试验研究了非饱和土中气态水迁移的规律，考查了不同含水量梯度、不同含水量水平、不同密实度、不同迁移时间以及非饱和砂土和黄土这两种不同土性条件下气态水迁移量的大小，以及在上述不同条件下气态水迁移量约占总混合迁移量的比例，使我们可以定性地判断出非饱和土中气态水迁移的重要性。 |
