扩散的

The first step of simulation method is to establish the one-dimension parabolic partial differential advection diffusion equation that was used to describe the mass transportation model of air-pollution distribution as a block program model of the controllable plant. Then, applying the Fuzzy logic theory to operate tunnel jet-fans and control the tunnel wind quantity and adjust the wind average velocity would not let the air-pollution concentration over the standard safety value too much.

模拟方式首先将常被用以表示隧道内空气污染物质传理论模式之一维向平流扩散抛物线型偏微分方程式建构成一组可控制对象的方块程式模拟模型，再运用模糊逻辑理论模拟控制喷流式通风机之运转风量来调节隧道内平均风速以控制隧道内空气污染物浓度不至於高过标准安全值太多。

An analytical solution on the shell side mass transfer in a parallel flow hollow fiber membrane module was carried out.

在建立了气体通过微孔膜扩散模型后，本文重点讨论了平行流组件壳程的传质和流动特性。

The calculated self-diffusion coefficients of water agreed well with the experimental ones within less than 5 percent relative error.

扩散系数的模拟结果与文献试验值吻合良好，相对偏差小于5%。

The pharmaceutical properties of DSP gel,such as lower critical solution temperature,DSP stability and release in vitro,were esti- mated.The pharmacokineties of DSP-loaded gel and solution were studied after an intratympanic or intravenous administration by determining the concentration of Dex in perilymph.

建立DSP和地塞米松HPLC测定方法；考察凝胶中药物的稳定性；采用扩散池方法评价其体外释放行为；与溶液剂相比较，研究鼓室注射载药原位凝胶后耳蜗外淋巴液中药动学规律。

The operation of periodic flow reversal is a new kind of unsteady-state reaction techniques.

流向变换周期操作是一种非稳态催化反应新技术，其反应器模型一般为非线性反应－对流－扩散方程的新型定解问题。

Firstly, the expansion of outer solution for the problem is constructed using the regular perturbation method.

讨论了一类具有双参数的非线性反应扩散方程奇摄动初边值问题。

A system of singularly perturbed convection-diffusion problems is considered.

考虑奇异摄动对流扩散方程组在Bakhvalov-Shishkin网格上的迎风差分策略。

However, in recent years, the pervasion of county economy disparity is quicker and becomes clear.

但近几年来，中国县域经济差距十分明显，且有不断增加的扩散趋势。

Now, economy increase depends on the production, pervasion and application of knowledge more and more than anytime.

当今，经济增长比任何时候都更依赖于知识的生产、扩散和应用。

The beneficial effects of phosphorus mainly arise from the suppression of diffusion along grain boundary and the improvement of grain boundary δ-phase.

磷的有益作用主要来自于抑制晶界扩散和改善晶界δ相。

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