The mass transport of water and reactant gas in GDL, the two-layer structure of GDL and the "water management" mechanism of the micro-porous layer, and the research progress in GDL were reviewed.
概述了气体扩散层中水和反应气的传质、GDL的双层结构、微孔层的“水管理”机制以及GDL的研究进展。
The result showed that the synthesized PAM had the frame with fibre like, layer like and porous structure, which was the main reason that polymer was rapidly dissolved in water.
研究结果表明：合成的聚丙烯酰胺具有纤维状、层状、孔状结构，这种结构是产品速溶的主要原因。
Pyrene fluorescence probe was used to investigate the structure of the adsorbed layer of cationic surfactants primary amines and quaternary amines at the diaspore-water interface.
采用荧光探针法研究了在烷基伯胺和季铵盐阳离子表面活性剂在一水硬铝石表面吸附层结构。
Protection layer excavation in foundation of structure is always one of difficult problems perplexing construction in water conservancy project.
建筑物基础保护层开挖一直是困扰水利水电施工的难题之一。
Because of complex pore structure in low permeability sandstone reservoir, it was quite difficult to identify oil or water layer and evaluate reservoir using normal methods.
低渗透砂岩油藏因其孔隙结构复杂，利用常规方法进行油水层识别和储层评价难度较大。
With the relative water consumption of each growing stage as input and relative crop yield output, a BP artificial neural network structure containing a single hidden layer is established.
将各生育阶段的耗水量作为输入，将作物单产作为输出，构建了具有1个隐含单元层的BP神经网络结构。
The third layer has a very thin, dense structure that increases water resistance.
第三层是层非常薄、紧密的结构以增强防水。
Said invention utilizes plastic film or plastic board as the water-proof layer of root, while the plastic layer is mounted on the surface of root or in the one layer of multilayer structure of root.
本发明用塑料薄膜或塑料板作为房顶的防水层，塑料层位于房顶表层，或位于房顶多层结构中的其中一层。
The water collector is in a double-layer plate type ripple structure with a layer of plastic film covered outside.
其所述的收水器呈双层板式波纹结构，其外有一层塑料膜。
Widely water retention adjustment range - can select high water retention or good coating layer structure.
广保水调节范围-可以选择高水保留或良好的涂层结构。
Double-Layer structure in subsoils is caused by water level and the settlements of subsoils are several dozen 'times smaller than those of quartz sands for 3rd band buildings.
颗粒大小、级配及水质条件与土的力学性质密切相关，水位的存在使地基具有上硬下软的双元结构特点，与相对密度相同的石英砂地基相比，其沉降变形要小几十倍。
It adopts the water-bath multi-layer diversion wall-scraping mixing assembly, which is featured by it's compact structure, smooth transmission and stable working performance.
本设备采用水浴式双机多层分流刮壁搅拌总成，结构紧凑，传动平稳，工作性能稳定。
It adopts the water-bath multi-layer diversion wall-scraping mixing assembly, which is featured by it's compact structure, smooth transmission and stable working performance.
本设备采用水浴式双机多层分流刮壁搅拌总成，结构紧凑，传动平稳，工作性能稳定。
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