1) water resistance and depreciation
阻水减渗性
1.
Sand layer set in loess will play a part in water resistance and depreciation so as to make most of soil water retain in fine soil layer over sand layer.
从物理角度和土壤能量观点分析了砂层在土壤中的阻水减渗的物理机制 ,旨在理论上解释砂层在土壤中的阻水减渗性 ;同时从建筑防渗角度对砂层最优埋深作了分析 ,给出了表层土壤的水分分布的解析解。
2) infiltration reduction effect
减渗特性
1.
The law of bilateral interference infiltration and the infiltration reduction effect relative to free infiltration is analyzed according to the experimental data.
根据试验资料,分析了膜孔多向交汇入渗规律,研究了膜孔交汇入渗相对于膜孔自由入渗的减渗特性,建立了膜孔多向交汇入渗的三阶段入渗模型和减渗量模型,分析了膜孔交汇入渗参数随入渗阶段的变化规律,提出了膜孔交汇入渗减渗率的概念,并推导得到了膜孔多向交汇入渗减渗率的计算公式。
3) reduction infiltration characteristic
阻渗特性
1.
Based on the data home and abroad, combined with the National Natural Science Foundation, use the technical route combine indoor and outdoor experiment and theory analysis, this thesis mainly study the effect factors and reduction infiltration characteristics of air pressure entrapped in soil under one dimension infiltration, two dimension infiltration and three dimension infiltration.
本文在查阅国内外大量相关文献资料的基础上,结合国家自然科学基金等项目,采用室内外试验和理论分析相结合、以室内试验为主的技术路线,利用自行研制的试验设备主要研究了一维垂直入渗、二维入渗和三维入渗条件下禁锢土壤空气压力的影响因素和禁锢土壤空气压力的阻渗特性。
4) drag reduction by hydrophobic coating
疏水减阻
5) reducing-drag surfactant solution
表面活性剂减阻水溶液
6) viscosity drag reduction
粘性减阻
1.
The technology of magnetic fluid viscosity drag reduction is a new one.
磁性液体粘性减阻技术是一种新兴的技术。
2.
The mechanism and methods of viscosity drag reduction are briefly discussed.
本文综述了几种粘性减阻方法及其减阻的机理，联系了其在水相、油相中节约能源、材料，提高速度和效率等方面的应
3.
The principle on viscosity drag reduction or magnetic fluid is discussed.
论述了磁性液体粘性减阻技术的原理。
补充资料：输送原油用聚甲基丙烯酸高级酯油溶性减阻剂
输送原油用聚甲基丙烯酸高级酯油溶性减阻剂
输送原，自厢聚甲基再烯酸高缎酷油滓性撼胡剂成都刊M把学自奇f竹完所供稿
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