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- emitter diffusion layer 发射极扩散层
- The microstructure and the properties of nickel diffusion layer were also investigated. 同时，对扩散层的组织和性能进行了研究。
- The characteristics of so-called silicon diffusion layer were analyzed through EPMA and hardness test. 通过成分分析（EPMA）和硬度测试， 分析了硅扩散层的特征。
- SO_4~(2-) ions can hardly enter into Stern layer and SO_4~(2-) ions adsorbed byC-S-H surface distribute in the diffusion layer for the main. SO_4~(2-) 离子很难进入吸附层,被吸附的SO_4~(2-)离子主要分布在扩散层中。
- The gas diffusion layer of air electrode was prepared by the rolling method with acetylene black and 60% PTFE emulsion as raw materials. 以乙炔黑、60%25PTFE乳液为原料,用辊压法制备空气电极的气体扩散层。
- Until now, there have been many attempts to increase fuel cell performance by developing or modifying the gas diffusion layer (GDL). 直到现在，已有许多研究证实，改良气体扩散层的碳微孔层性质可以促进燃料电池的性能提升。
- Moreover,metallograph examination and hardness measuring are made for the specimens and electronic probing imposition for the diffusion layer. 结果表明,在共析温度以下进行催渗氮碳共渗,具有渗速快、渗层硬度高的特点;
- Gas diffusion layer (GDL) is one of the most important electrode components in proton exchange membrane fuel cell (PEMFC). 在质子交换膜（PEM：Proton Exchange Membrane）燃料电池中，气体扩散层（GDL：Gas Diffusion Layer）是电极的重要组成部分，其结构和性能参数对电池的综合性能有重要的影响。
- By using the larger porosity of the gas diffusion layer, it can effectively prevent the anode side of the membrane from being dry, the cathode side of the membrane from flooding. 当使用孔隙度较大的气体扩散层，可以防止薄膜靠阳极侧乾化，薄膜靠阴极侧淹水，并可把各层达稳态的时间缩短。
- The sublayer sandwiched between gas diffusion layer (GDL) and cat alyst layer can reduce water saturation in the catalyst layer and optimize gas and water transport. 在催化层和扩散层之间加入的扩散亚层能够减小催化层的水饱和度,优化扩散层中的水和气传输。
- The results show that the catalytic cementation nitrocarburizing below the eutectoid temperature has a rapid penetrating rate and high hardness for the diffusion layer. 化合物层随催渗温度升高而增厚,致密性提高;
- The relationship of the process parameters to the depth of diffusion, concentration of titanium in the diffusion layer and the microstructure of titanizing layer are studied. 探讨了工艺参数与渗层厚度的关系,渗钛层组织特征,渗层钛浓度分布。
- Experiment results showed that the process of Hot Dip Aluminum and complex Boronisation on the A3 surface is feasible, it had a continuous layer between diffusion layer and matrix and a better hardness gradient. 试验表明 :A3钢表面浸镀扩散渗铝复合渗硼工艺可行 ,渗层与基体形成了连续的扩散层 ,并且具有良好的硬度梯度。
- To study the effect of microstructure of porous gas diffusion layer(GDL) in proton exchange membrane fuel cell(PEMFC) on simulation, an effective method must be used to express the microstructure. 为了研究质子交换膜燃料电池扩散层多孔材料微结构对仿真结果的影响,首先必须找出一种有效的方法来描述其微结构。
- When the width of the channel is unchangeable, the more are the numbers of the channels, the narrower the channel becomes, the evener the oxygen on the surface of diffusion layer becomes. 当流道宽度不变时，流道数目越多，流道间隔越窄，越有利于氧气在扩散层表面上的均匀化分布。
- The membrane electrode assembly (MEA) in proton exchange membrane fuel cell (PEMFC) was composed of the proton exchange membrane, catalyst layer, water management layer(WML) and diffusion layer. 摘要质子交换膜燃料电池(PEMFC)的膜电极(MEA)由质子交换膜、催化层、水管理层(WML)和扩散层组成。
- A new technique of ion S-N-C co-diffusion with argon bombardment was presented for HSS .An investigation was made on temperature and time of bombarding which effects the diffusion layer. 介绍了高速钢离子硫氮碳共渗复合氩轰击处理工艺,对氩轰击温度、时间对共渗层的影响进行了初步研究。
- It is now unlawful for factories to emit black smoke into the air. 工厂向大气中排放黑烟现在是违法的。
- Diffusion layers of different steel samples were obtained by the chemical heat treatment of carbonizing, boronizing and sulphurizing. 研究了不同含碳量的钢件经渗碳、渗硼、渗硼+渗硫等化学热处理后,获得的表面渗层对钢件弯曲断裂强度和挠度的影响。
- When the water contains a high concentration of ions, the diffuse layer would obviously be compacted. 当水中含有高浓度离子时，扩散层会明显收缩。
