There are prominent differences between traditional surface science underUHV conditions and catalysis in the real world, focusing on the so-called"materials gap"and "pressure gap".
在真空表面科学研究与实际催化反应体系之间存在着显著的差异，具体表现在所谓的“物质鸿沟”和“压力鸿沟”上面。
To maximize energy output, the tapered towers funnel wind between them, creating a negative pressure zone behind the buildings that draws more air through the gap.
为最大限度发电，在两塔间形成了漏斗形的聚风口，使得在大厦后面形成一个负压区，有利于通过豁口吸入更多空气。
A small gap that can form between the casing or liner and the surrounding cement sheath, most commonly formed by variations in temperature or pressure during or after the cementing process.
在套管或衬管与周围的水泥环之间所形成的小间隙，这些间隙是由于在固井期间或固井之后温度或压力的变化所致。
The ball screw can be pre pressed, because the pre pressure can make the axial gap reach negative value, and then get higher rigidity.
滚珠丝杠可以加预压，由于预压力可使轴向间隙达到负值，进而得到较高的刚性。
The results indicated that there exists obvious gas gap in molten iron flowing front, and the pressure in gas gap with EPS pattern during vacuum pouring is less than 1 a tm.
试验结果表明，铸铁件流动前沿不仅存在明显的气隙，而且采用聚苯乙烯模样材料，负压下浇注时，其气隙压力低于1个大气压。
Under pressure, part of the seal enters into that gap and material extrudes into the gap.
在受压下，密封的一部分进入间隙并且材料挤出到间隙。
Moreover, the OECD forecasts a significant output gap - and so persistent deflationary pressure - at least until 2005.
更有甚者，根据OECD的预报，显著的产出缺口，以及由此形成的持续的通缩压力，将至少持续到2005年。
An advanced double wires narrow gap SAW technique, equipment and special procedure have been used to weld high pressure storage tanks successfully with high quality welding joints.
采用先进的双丝窄间隙埋弧焊设备和专用焊接工艺，成功地焊接了大厚壁高压蓄势器，质量检查全部合格。
When the relative gap height (the ratio of flap height to gap width) is in the range of 0 8-2 0, the mean pressure will reduced 30% if the flap height is smaller than the thickness of boundary layer.
底部相对间隙在08～ 2 0之间时，扰流片高度小于边界层厚度时的壁面平均压力比扰流片高度大于边界层厚度时小30 %左右。
The influences of gap with different height on pressure distribution are in the same manner.
底部间隙对各种扰流片引起的壁面压力分布的影响趋势完全相似。
The problem such as maladjustment and language gap will bring them great stress. As time flies, the increasing pressure will cut down their confidence, and a vicious cycle would be created.
不适应环境，语言差距等问题会给这类留学生带来很大的压力，久而久之，压力越来越大，信心越来越少，恶性循环。
To pressure the oil sample alternatively in specified test gap may shorten the test time and guarantees inspection of electrical equipment for oil charging.
利用规定的试验间隙，对多个油样进行交替加压，可以缩短总的试验时间，为加快充油电气设备的检修提供了条件。
The cost gap is day by day serious, also gave the extraction unit management and operation to bring the difficulty and the pressure, also slowed down the oil gas development step.
成本缺口日益严重，既给采油单位经营管理带来了困难和压力，也减缓了油气开发的步伐。
The magnetic fluid sealing pressure is mainly related to the magnetic flux density of the magnetic gap, and also related to the structure.
磁流体密封压力主要由间隙的磁通密度决定，结构参数对密封压力也有影响。
For improving automatic gauge control precision and quality of the whole strip, FMN is proposed to correct gap of the rolling by fast hydraulic pressure system.
为进一步提高带坯全长厚控精度及控制品质，依靠液压压下快速移动特性采用快速监控FMN功能。
The partial arc may derive from the surface of polluted insulator string and form the air gap arc during the pollution flashover process at low air pressure.
低气压下绝缘子污闪放电过程中局部电弧存在飘离绝缘子表面形成空气间隙电弧的现象。
The photonic band gap (PBG) property of a one-dimensional photonic crystal with a defect layer under pressure is studied, accordingly an improved model of pressure sensor is described.
通过研究带缺陷的一维光子晶体受压力后光带隙性能的变化，提出了改进型光子晶体压力传感器的理论模型。
Analyzing the result data of the grouting tests, the writer raises some recommendations about construction process and parameters such as hole arrangement, hole row gap and grouting pressure.
通过对灌浆资料成果分析，对布孔形式、孔排距、灌浆压力等施工参数和施工工艺提出了建议。
The results show that both gas-forming property and decomposition latent heat of the polystyrene material influence the metal flow velocity and the gaseous pressure of the gap significantly.
结果表明，模样汽化潜热与发气性均严重影响铝合金液的充型速度及间隙压力。
Crimp ratio depended on crimp temperature, pressure and the gap of crimp roller, specific resistance was related to air humidity.
卷曲温度、压力、卷曲轮间隙决定卷曲率的大小；比电阻与空气湿度有关。
The gap size, depends on the liquid viscosity, pressure and other factors.
其间隙大小，取决于液体粘度、工作压力等因素。
The results indicate that the power index, the minimum gap width and the size ratio are the main factors affect the magnitude of the pressure, the force and the moment.
结果发现幂流体的幂指数、颗粒间最小间隙以及颗粒的大小都是流体压力和颗粒间切向阻力的重要因素。
Objective To study the changing state of electrolyte, osmotic pressure and anion gap (AG) as well as the relation among them in children with acute rotavirus enteritis.
目的探讨小儿急性轮状病毒肠炎的电解质、渗透压和阴离子间隙(AG)的变化情况以及相互间的关系。
The law of fracture pressure of grouting is affected by the gap width notably, and the rheological parameters of grout play a key role in computing the diffusion radius.
计算分析了劈裂注浆过程中劈裂压力随缝隙宽度的变化以及流变参数对扩散半径的影响规律。
It shows that the grouting diffusion radius of Bingham fluid is related to the grouting pressure difference, gap width, flow velocity and time-dependent behaviors of rheological parameters.
由公式可知，土体劈裂压力、裂隙宽度、浆液流速、流变参数的时变性是影响扩散半径的重要因素。
Integrate effect was estimated by measured layer gap, stress and strain through hydraulic bulge and pressure increase test.
通过在液压胀合处理及加压试验中实测的层间间隙、应力和应变来评估其贴合效果。
The links among the pressure, the casting speed and the gap in the casting passage have been analyzed with the hydraulic modelling test.
结合水模型试验分析了浇铸通道内压力、拉坯速度和间隙三者之间的关系。
The gap is influenced by water pressure gravity of equipment; magnetic pulling force and heat expand.
间隙的大小受水压，设备自重，磁拉力和热膨胀等影响，其中以热膨胀的影响因素最大。
People have had to deal with increasing pressure and the income gap between rich and poor has become larger and larger.
社会财富分配不均衡，人们不得不承受巨大的心理压力。
The pressure cylinder contacts to the elastic sleeve, so that one gap is formed between the transfer printing cylinder and the pressure cylinder so some hard object to pass through.
该压力滚筒对应接触于该转印滚筒的弹性套筒，在该转印滚筒及压力滚筒之间形成一间隙，如此一硬质物体可通过该间隙。
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