我们正在寻找防止有害气体扩散的方法。
We are currently searching for ways to prevent the spread of harmful chemicals in the air.
介绍了气体扩散实验存在的问题和改进的方法。
This paper introduces some problems existing in the experiment of gas proliferation and discusses the improved methods.
现在我们让这部分容积内的气体扩散，到另一边的真空内。
And now we let the volume expand into vacuum on the other side.
提供用于燃料电池例如质子交换膜燃料电池的气体扩散介质。
A gas diffusion media for a fuel cell, such as a proton exchange membrane fuel cell, is provided.
由于井场所位于的山区地形下垫面特殊，气体扩散过程比较复杂。
As well located at the mountain terrain special surface, the gas diffusion process more complicated.
介绍气体扩散阳极（氢扩散阳极）在湿法冶金上的节能降耗原理。
The saving-energy and reducing-consume principle for gas diffusion anode(GDA) used in hydrometallurgy is described.
通过一些实用方法的例子，阐述了气体和蒸气爆炸和气体扩散模型。
It elaborates gas and vapor explosion, as well as gas dispersion modeling, using examples for applied methods.
在那里它被转化为铀的六氟化物，再被送进气体扩散工厂作富集处理。
There it is transformed into uranium hexafluoride, which in turn is sent to gas diffusion plant to be enriched.
通过对泄漏气体扩散边界的研究，可确定泄漏气体扩散形成的危险域。
The research results showed that the boosted wind speed or the velocity of gas leakage accelerated the gas diffusion, and the diffused gas concentration to the leeward side was decreased.
本文采用热压法制备了一种多孔气体扩散电极并对其进行了XRD表征。
In this paper, a gas diffusion electrode was made by hot pressure method and character by XRD.
为防止呼吸机呼气管道中的含菌气体扩散污染病房空气，引发交叉感染。
For avoiding the diffusion of the gas containing bacteria in the tube of the respiration apparatus to pollute the air in ward and make the cross-infection.
还提供了一种利用这些气体扩散衬垫制备的膜电极组件和一种燃料电池。
A membrane electrode assembly prepared using these gas diffusion backing and a fuel are also provided.
随着催化剂循环强度的增加，移动床与固定床在气体扩散规律上的偏离程度增大。
The difference of gas diffusion regularity between moving bed and fixed bed enlarged with the increase of catalyst recycle intensity.
实验结果表明钢电催化剂的气体扩散电极的电化学活性优于铂-铈合金电催化剂的。
The results show that it was feasible to manufacture the Pt-C/PTFE gas-diffusion electrodes by thermal decomposition and tile performance of Pt electrode was superior to Pt-Ce one.
不论是在有无偏压实验条件下，气体扩散模型可以成功解释氨在五苯环薄膜中的扩散行为。
Our results showed that Fick's second law can successfully explain the variations of threshold voltage.
将气相生长碳纤维(VGCF)加入到锌空气电池空气电极催化层中，通过热压成型制备三相气体扩散电极。
Vapor grown carbon fiber (VGCF) was mixed in the catalyst layer of the air electrode for zinc-air battery, prepared by hot-pressing method.
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 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.
从气体扩散理论出发，研究了湿空气下的天然气扩散，以菲克理论进行理论分析，重点提出了气体扩散的影响因素。
From the gas diffusion theory to study gas diffusion on the wet air, to Fick theory analysis, puts forward the influencing factors of gas diffusion.
讨论了质子交换膜燃料电池运行电流密度和温度、阴极和阳极加湿温度、气体扩散层孔隙率等参数对以上结果的影响。
The effect of the current density and fuel cell temperature, humidified temperature of cathode and anode, porosity of porous diffusion layer on the results mentioned above are discussed.
以锌空气电池气体扩散电极为研究对象，采用分层添加催化剂的方式研究了改变催化层位置对气体扩散电极放电性能的影响。
Take gas diffusion electrode of zinc-air battery for example and add catalyst by layers, we studied the effect of changing catalyst layer location on the performance of gas diffusion electrode.
该模型能定量地描述气体扩散地面浓度分布场，能快捷和科学地预测浓度和源强、风速、大气稳定度以及时间空间等的关系。
The model could describe the concentration field quantitatively, and predict the relationships between concentration and source strength, wind velocity, atmospheric stability, space-time and so on.
高含硫气田井喷有毒气体扩散对周围居民的危害很大，通过安全防护距离的方法保护井口周边群众是国内目前比较认同的做法。
Poison gas from High sulfur gas field blowout is so dangerous to dweller nearby. It was deemed right to prevent the people from death in inland that setting up safety distance abound the well head.
论文采用改性二氧化铅阳极和气体扩散阴极协同作用预处理难降解有机废水，为难降解有机废水的处理工艺提供了一种新的途径。
Using modified PbO_2 anode and gas diffusion cathode to pretreat refractory organic wastewater provided a new way to treat that wastewater.
正如他回忆的那样，一个正在使用的气体驱动泵坏了，导致了一氧化碳在房子里扩散。
As he recalled it, a gas-driven pump being used broke down, spreading carbon monoxide through the house.
第一个，或许是所涉及到的最简单的一个，就是气体的自由扩散。
And the first one, the simplest one, maybe, to cover, is just free expansion of a gas.
但我们，后世的人们，逐渐并如此深入地接受了他的成果，如此这是我们的熵变，它发生在气体从V1扩散到V2的过程。
But we, generations later, have come to accept the results that concerned him so deeply.So this is our change in entropy, when we just have this expansion of gas from V1 to V2.
教授：之前几节中，我们开始看到一些过程及结果，混合的简单的变化，关于气体，液体的扩散。
PROFESSOR: Last few lectures, and we started to see some of the consequences and looked at simple changes, transformations of expansion and mixtures of liquids and gases.
这样一个星体不太可能有大气层，因为灼热的气体会飞快的向空中扩散。
It's highly unlikely that such a world would retain an atmosphere, since the searing hot gases would rapidly escape into space.
这样一个星体不太可能有大气层，因为灼热的气体会飞快的向空中扩散。
It's highly unlikely that such a world would retain an atmosphere, since the searing hot gases would rapidly escape into space.
应用推荐