查询词典 diffusion

Under constant groundwater table boundary condition,water content distributions along the heights of capillary rise of samples under three different compactness are presented in this paper.And the isothermal moisture diffusion coefficient was also obtained by Bruce method.

在常地下水位边界条件下，获得了三种不同压实度土体的含水量随高度的分布规律，并利用Bruce推导的方法计算了等温水分扩散系数。

From the theory aspect, human capital is the main body and headspring of technology innovation as well as the necessary condition for technology diffusion; thus the quantity, configuration, disposition of human capital which one country or area owned will affect its innovation abilities.

从实证分析看，我们选用了我国的R＆D投入产出数据进行了分析，得出了人力资本是影响(来源：ABC论66文网www.abclunwen.com)技术创新的重要因素，增加人力资本投入可以提高技术创新能力。

Variation in discrimination against 13C during photosynthesis is due to both stomatal diffusion limitations and enzymatic carboxylase processes.

植物对13C和12C分辨率的差别主要是由于光合作用过程中CO2经气孔扩散分差和酶羧化过程引起的。

Reducing afterblowing and using the carburant with low nitrogen content are important measure. The kinetics of nitrogen removal from liquid steel under vacuum with reaction between carbon and oxygen was studied on the multi-function induction furnace. The following conclusions were obtained by experiments: The nitrogen removal was obtained by the nitrogen transfer through the liquid steel diffusion layer at 67Pa and 110Pa pressure, and by the gas-liquid surface chemical reaction at 2000P.

结果表明：真空度对脱氮机理有影响，67Pa～110Pa时脱氮为一级反应，2000Pa时脱氮为二级反应，1340Pa时为混合控制；即使在。1％的条件下，碳氧反应亦可显著提高脱氮速度常数促进深脱氮，在RH内通过加强碳氧反应来提高脱氮率理论上是可行的；当钢液内存在内生或外来固态粒子时，有利于钢液中CO及N〓气泡的形成及排除，这时气泡内p〓≈0，有可能使钢液中氮含量低干与系统真空度平衡的氮含量。

Luminescence evolutions of GaN irradiated by low energy electron beam before and after hydrogenation has been investigated by means of cathodoluminescence, combined with the diffusion properties of hydrogen in GaN.

本文结合氢在GaN中的扩散特性，运用阴极荧光谱，对氢化前后低能电子束辐照下GaN带边发光强度的演变进行了研究。

The noise of the image is eliminated through anisotropic diffusion filtering based on Catt model while the details of the image are kept.

通过基于Catt扩散模型的各项异性滤波，实现了在保持图像细节的同时有效地消除图像的噪声。

In Chapter 3,we discuss the Cauchy problem for reaction-diffusion system of Fujita'stype with singular coefficients.

第三章讨论具有奇异系数的Fujita型反应扩散方程组的Cauchy问题。

The activation energy of cellular decomposition calculated by DSC date was 88.24kJ/mol, which showed that the decomposition was controlled by Zn atom diffusion.

DSC数据计算得出，胞状分解的相变激活能为88.24kJ/mol，表明其分解主要受锌原子扩散控制。

Diffusion-weighted imaging can provide qualitative and quantitative information at cellular level about tumor cellularity and the integrity of cell membranes.

磁共振全身弥散加权成像能提供细胞水平的定性和定量信息，反映肿瘤细胞构成及细胞膜完整性的变化，尤其是近几年发展的磁共振全身弥散加权成像技术，在诊断全身肿瘤原发灶，筛查全身肿瘤转移灶方面具有一定的优势，本文就其在肿瘤筛查、肿瘤特征描述、肿瘤良恶性鉴别、肿瘤疗效评估等方面的作用予以综述。

A one-sided difference approximation is used for convection terms and a second-order central difference approximation for diffusion term.

二阶一边差分逼近用于对流项的离散，二阶中心差分逼近用于扩散项的离散。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。