Connected to these processes is an increase of the diffusion resistance for CO2 from the atmosphere into the leaf.
与这些过程相联系的是CO2从大气进入叶内的扩散阻力增大。
The gasification reaction rate would reduce because ash would melt, which will plug the coal surface pores and increase gas diffusion resistance.
高温下煤灰发生熔融,将会堵塞煤焦表面孔隙,增大气体扩散阻力,降低气化反应速率。
Water leaching dynamic of chromium is discussed in this study. The result indicates that this water leaching reaction belongs to diffusion resistance model.
本文还对焙烧-水浸过程中铬的水浸动力学模型进行了讨论,研究结果表明该水浸反应的动力学模型属于孔扩散模型。
It contains nutritious elements and rich water, and has high diffusion resistance in soil of retaining in the applied position reaching the delay-releasing effect.
含有营养元素的富水液体在土壤中的扩散阻力陡增,长时滞留于追施部位,达到了液体肥料缓释的效果。
The results indicate that the diffusion process of oxygen and nitrogen in carbon molecular sieve is activated, such an process may be represented by the dual diffusion resistance model.
结果表明,氧和氮在炭分子筛中的扩散是活化扩散,该过程可用双孔模型进行描述。
This model takes into account both the diffusion resistance of the membrane phase in non-steady state and the diffusion resistance of the external phase boundary film and the membrane leakage.
该模型不仅考虑了非稳态下膜相扩散阻力,而且还考虑了外相边界层的扩散阻力及膜破裂。
The unit operation, a solid particles of dust and impurities by gravity, inertia diffusion, contact resistance leave, static comprehensive effect, dust settlement piling up in filtering elements.
机组运行时,大量灰尘和固体颗粒杂质由于重力、惯性扩散、接触阻留、静电等综合作用,灰尘沉降堆积在过滤元件上。
The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.
介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。
Reaction rate constant, effective diffusivity, apparent activation energy, effective diffusion activation energy and resistance in various steps of the reaction process were analyzed in this paper.
并对反应速率常数和有效扩散系数、表观反应活化能和有效扩散活化能及反应过程中各步骤阻力进行了分析。
The results show: external diffusion is control process for mass transfer, and increasing air velocity and decreasing particle diameter are effective measures to decrease mass transfer resistance.
研究结果表明:外扩散过程是传质的控制步骤,增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施。
The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.
在四种作物的抽穗期同时测定其气孔扩散阻力、蒸腾速率与叶水势日变化。
This instrument has been used to measure the sheet resistance distribution for Boron diffusion chip.
并用该仪器测定了硼扩散片的薄层电阻分布。
This instrument has been used for measuring the sheet resistance distribution for Boron diffusion chip.
并用该仪器测定了硼扩散片的薄层电阻分布。
The results show: external diffusion is the main resistance for mass transfer, and increasing air velocity and decreasing particle diameter are effective measures to decrease mass transfer resistance.
研究结果表明,外扩散过程是传质的主要阻力,增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施。
The different effects of external sorption, adsorption and diffusion on mass transfer resistance are discussed and the resistance model of membrane mass transfer was built.
讨论了界面吸附、脱附与扩散对传质阻力的不同影响,建立了薄膜传质的串联阻力模型。
HEPA supply outlet diffusion perforation panel influences cleanroom air velocity field, cleanliness, cleanliness recovery characteristic and resistance of the diffusion panel.
高效过滤器送风口扩散孔板的开孔情况影响着室内流场、室内空气洁净度、洁净室自净时间和扩散板阻力。
The experiment results indicate that the nano-ceramic coating can retard inward diffusion of oxygen, which can obviously improve oxidation resistance of the alloy at high temperature.
实验结果得出:含纳米陶瓷涂层能有效的阻滞合金的高温氧化进程,极大的提高了合金的耐高温抗氧化性能。
The main conversion efficiency of solar cell factors such as stray resistance, diffusion length and compound rate were analyzed, too.
对寄生电阻、扩散长度和表面复合速率等影响太阳能电池转换效率的主要因素进行了深入分析。
The effects of the voids in the diffusion layer on cyclic oxidation and spalling resistance of aluminized steel was investigated.
研究了热浸渗铝钢扩散层空洞对循环氧化和剥落性能的影响规律及其机理。
The experimental results on commercial pure titanium verify the obvious changes in the microstructure, hardness and wear resistance after laser solid diffusion treatment.
对工业纯钛的初步试验结果表明,用激光进行固态扩散渗氧处理可以明显改变钛表层组织、硬度和耐磨性。
The electric-resistance method is employed to study the diffusion of nitrogen in steel.
用电阻法研究钢氮化扩散规律。
The results of experiments showed that the Nb can raise the depth of diffusion zone, hardness, wear resistance, strength and toughness of the nitriding layer of the matrix steel.
实验结果表明,铌能增加扩散层深度、硬度及耐磨性,提高渗层的强韧性。
The mesoscale pores are benefit to the diffusion of larger molecules with low resistance, while the micro-scale pores can provide effective catalytic sites of small molecules with high selectivity.
介孔允许大分子进入孔道同时具有较小的扩散限制,微孔则作为小分子的吸附场所,使小分子能够很好的择型催化。
The preparation of Al, Si and other elements co-diffusion coating and the mechanism of its high-temperature corrosion resistance were went into details.
对渗铝及硅和其它元素的共渗层的制备工艺及其抗高温腐蚀机理进行了详细讨论。
The invention provides a light diffusion sheet excellent in dimensional stability, light resistance, light diffusion characteristics, thermal stability, brilliance, and recyclability.
本发明提供尺寸稳定性、耐光性、光扩散性、热稳定性、辉度和资源再利用性优异的光扩散片。
Nitriding and oxidation: diffusion layer and oxidation layer improve soldering resistance, adhesion resistance and crack resistance.
氮化扩散层和氧化层:可以提高模具耐溶损性、耐过烧性、耐粘着性和耐热裂性。
Methods According to the routine separation methods fastidious bacteria of the respiratory tract were isolated, and using K-B disc diffusion test their drug -resistance was detected.
方法按细菌学常规方法分离标本中苛养菌,采用K - B纸片扩散法进行药敏检测。
METHODS Diffusion tests were used to measure the antibiotic sensitivity of bacteria isolated from the patients with bacterial peritonitis, and resistance was analysed according to NCCLS standard.
方法用纸片扩散法对由腹腔感染患者分离的细菌进行药敏试验,并按NCCL S标准判断细菌耐药性。
Through a great deal of experiments, the durability of HPC with artificial sand are studied systematically. Impermeability, freezing resistance and chloride ion diffusion are tested.
通过大量试验,系统研究了人工砂高性能混凝土的耐久性,对抗渗性、抗冻性、氯离子扩散系数等项目进行了测试。
Through a great deal of experiments, the durability of HPC with artificial sand are studied systematically. Impermeability, freezing resistance and chloride ion diffusion are tested.
通过大量试验,系统研究了人工砂高性能混凝土的耐久性,对抗渗性、抗冻性、氯离子扩散系数等项目进行了测试。
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