In the packing of amphiphilic molecules , like units of the molecules interact with each other , i . e . , the polar units associate with each other ; likewise , nonpolar unites associate to form hydrocarbon layers in the lamellar packing 在层状相中双亲分子的堆积类似于分子单元间的相互作用，即极性基团与极性基团缔合形成亲水层，而非极性基团之间缔合形成疏水层。
The analysis model and design methodology for the gas field are discussed referring to related documents . the structure parameters of gas manifold , channel , diffusion layer and hydrophobic layer which affect the oxygen distribution are also studied 本文阐述了气场分析模型和设计思想，研究了进气箱、交指型流道、扩散层和疏水层结构参数对氧浓度分布的影响。
At fuyang , deep water method instead of soil drainage was used , the water layer about 10 cm thick was kept for some days near maximum tillering stage , this could result in deterioration of soil environmental condition for rice growth at late stages 在富阳，用保持深厚水层的办法代替土壤排水，在最大分蘖期保持10厘米厚水层数天，破坏了水稻生长后期土壤环境条件。
By contrast , deep bay to the west has strong estuarine characteristics , meaning the water there is mixed with river flow , is low in salinity , typically shallow averaging 4 to 10 metres in depth , silty and turbid 相反，西部后海湾一带有明显的河口特性，海水被河水冲淡，盐度偏低，水层一般较浅平均水深为4至10米而水质混浊沉积物含量高而透明度低，并带有大量沙泥。
Experiment and research on influence factors of wastewater treatment by ultraviolet disinfection , and come to conclusion that relations of radition intensity , turbidity , radition time , water thickness and total coleocele livability 摘要探讨了紫外线消毒在污水处理中的影响因素，并得到了辐射强度、浊度、水层厚度、辐射强度和辐射时间与总大肠菌群存活率之间的关系，为消毒器的设计提供依据。
