扩散的

It may be attributed to the segregated Ge acting as a diffusion barrier layer at the interface of 〓.

这可归结为〓界面的富Ge层充当了Co向Si〓Ge〓扩散的阻挡层，导致Co的有效扩散系数减小，降低了反应速率。

Through the theoretical analysis of the diffusion coefficient of oxygen in crashed coal, its calculation formula was obtained .

根据松散介质中气体扩散的理论分析，得出了松散煤体中氧气等效扩散系数的理论计算公式。

The constant of proportionality between the diffusion flux and the concentration gradient in Fick's first law.

Fick第一定律中，扩散通量和浓度梯度之间的比例系数。其量级表示了原子扩散的速度。

We also used diffusion equation to solve curren-time relation of ion diffusion under certain boundary conditions.

应用扩散方程，在一定的边界条件下解得电流注入过程中离子扩散的电流-时间关系。

The soret effect and Dufour effect on the convective diffusion of VOCs in indoor surroundings was specially investigated.

并采用数值方法研究了室内环境中同时存在温度梯度、湿度梯度和VOCs浓度梯度时的自然对流传热传质现象，着重分析了考虑交叉扩散效应时热瑞利数和浮力比数等对室内VOCs对流扩散的影响。

The effect of methanol concentration on the etherification was discussed.

在消除内扩散和外扩散的情况下，考察了甲醇浓度对醚化反应速率的影响。

objective to obtain the diffusion tensor maps of the normal human brain,and assess intrinstic properties of water diffusion in quantitative parameters for an anatomic analysis.methods maps of isotropic apparent diffusion coefficient and various anisotropic maps were calculated in60healthy adults from seven diffusion imagings by using single-shot echo-planar diffusion-weighted sequence.brain parenchyma anatomy was analyzed and adciso and various anisotropic index were measured.results （1）diffusion properties of different tissues and anatomic areas of normal adult human brain are different.diffusion in white matter is anisotropic;diffusion in gray matter is isotropic.

目的 获取正常人脑组织扩散张力性图像（diffusion densor imaging，dti），定量分析正常人脑组织水扩散的内在特性，进一步评价脑解剖结构。方法 60例健康正常人，应用单次激发epi-dw序列，计算出adciso图及各向异性图，分析脑实质不同区域的解剖结构，测量adciso（isotropic apparent diffusion coefficient）及各向异性指数。结果（1）脑内不同组织结构弥散特性不同，脑白质弥散表现为各向异性，而脑灰质弥散表现为各向同性。

The mathematical model of Continuous Annular Chromatgraphy , considering axial and annular dispersion, is established, and the analytical solution is obtained by Laplace integral transforms.

建立了考虑轴向扩散和圆周方向扩散的连续环状色谱分离过程的数学模型，并通过拉普拉斯变换法获得了解析解。

Specifically, the image intensity gradient is utilized as the impetus and direction for oil slick propagation.

在该方法中，海洋浮油膜特征表示为扩散界面，影像灰度的梯度决定了界面扩散的方向和强度。

The body is trying to fight off a disease that is spreading, and as it does so, the body convulses, settles for a time and then convulses again.

身体正试图同正在扩散的疾病作斗争，当这种疾病扩散时，身体在抽搐，解决一段时期以后再次抽搐。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失