Were also studied systematically. In Chapter Five, the diffusion process of substitutional atom, such as Cr, Ni etc. and interstitial atom, such as carbon etc. was calculated theoretically and examined experimentally. The diffusion formulas were derived under the assumptions which were more appropriated to the practical conditions.
第五章对异种钢焊接接头在高温运行条件下，置换式原子Cr、Ni和间隙式原子碳的扩散规律进行了理论计算和实验拟合，提出了更接近实际情况的计算模型和边界条件。
A diffusion mechanism whereby atomic motion is from interstitial site to interstitial site.
一种扩散机制，此时原子的运动是从晶格间隙位置迁移到另一个相近的间隙位置。
So that, the internal friction peak induced by the interstitial atoms diffusion in the pure metalof face center cubic crystal was owing to the rotation of the atomic pair of two neighbouring atomsin the crystal lattice under the action of stress.
由此认为，间隙原子在面心立方晶体的纯金属中所引起的内耗峰是由于在基体点阵中两个相邻间隙位置上的碳原子所组成的一个原子对在应力作用下的转动而产生的。
The protective blood brain barrier normally allows diffusion of small molecules such as oxygen and carbon dioxide, and transport of essential nutrients, but excludes large proteins and other blood constituents from the interstitial space of the CNS.
在中枢神经系统中，氧气，二氧化碳和一些基本营养物质可以通过血脑屏障，而其他血液组分和大分子蛋白则不能通过。
It is described that a series research of heavy phosphorous diffusion gettering, aluminum and combination of aluminum and phosphorous gettering (evaporation of aluminum on the back of the wafers) are used to fabricate monocrystalline silicon with different impurity concentration of interstitial oxygen.
对不同氧含量的太阳电池用直拉硅片进行了磷扩散吸杂、铝吸杂及磷-铝联合吸杂的研究。关于油品蒸发问题降水与蒸发；
Conclusion The patients'pulmonary function of idiopathic interstitial pneumonia appears restriction of ventilation function and impairment of lung diffusion function.
结论：特发性间质性肺炎肺功能表现为限制性通气功能和肺弥散功能障碍。
Research on Clearance Adjustment Mechanism and Clearance Control Technology of Cycloid Steel Ball Transmission A diffusion mechanism whereby atomic motion is from interstitial site to interstitial site.
摆线钢球行星传动间隙调节机构及间隙控制技术研究晶体扩散机制的一种。间隙原子由一个间隙位置迁移至邻近的间隙位置所构成的扩散。
Some valuable research results are: A theoretical model on diffusion of interstitial atoms in crystal was put forward.
较为重要的研究成果有：提出在晶体中间隙原子扩散的理论模型；
A new theoretical analysis method for diffusion of interstitial atom in crystal materials
间隙原子在晶体中扩散的新的理论分析方法
In this paper, a new theoretical analysis method for diffusion of interstitial atom in crystal materials has been presented.
本文提出间隙原子在晶体材料中扩散的微观过程的新的理论分析方法。
The models of " diffusion-advection-reaction " of dissolved silicate and sulfate in sediment interstitial waters of the East China Sea are given in this paper.
本文提出了东海沉积物间隙水中溶解硅酸盐和硫酸盐的扩散-平流-反应模式。
These results show that the ion beam mixing mechanism of Mo/Si system is not vacancy diffusion and intra-cascade interstitial diffusion, and the thermal spike model also does not apply.
结果表明，以前的空位扩散机制、单级联间隙原子扩散机制和热峰模型都不能解释Mo/Si体系的离子束混合。
Also, the content of the interstitial atoms in the unalloyed zone of iron reduces with increasing diffusion temperature and prolonging holding time.
实验结果表明，随着扩散处理温度的提高和处理时间的延长，未合金化区域中间隙元素的含量降低程度也增大；
Objective To investigate diffusion capacity of pulmonary capillary membrane and pulmonary capillary volume in patients with idiopathic interstitial pneumonia (IIP).
目的研究特发性间质性肺炎（IIP）患者肺泡毛细血管膜弥散能力（DM）和肺泡毛细血管床容量（VC）变化及特点。
By carbon ion implantation, painting Ag slurry and electric plating Ni into/on the surface of nanocrystalline copper, some stable diffusion sources are obtained, in which the atoms are interstitial or substitutional.
然后进行表面离子注入碳，表面涂覆银浆和电镀镍等处理，在纳米晶层内部或表面得到一定浓度的间隙或置换溶质原子，热处理后考察它们的扩散行为。