扩散

1The soil water c haracteristic curves of four soil layers in this soil were consistent. The satur ated water content, field capacity, wilting coefficient and available water capa city decreased from top soil to bottom in soil profile.(2)The unsaturated hydra ulic conductivity was significant relation with the negative pressure head in ex ponential function and tended to stable when the negative...

土壤的饱和含水量、田间持水量、凋萎系数和土壤有效水的含量均从土壤上层到下层呈降低的趋势；土壤的非饱和导水率与负压水头之间呈负相关的指数曲线变化，当负压水头达到 10 k Pa时，非饱和导水率降低到最小值，且基本趋于稳定；非饱和土壤水扩散率变化于 1.1× 10 - 3～ 1.886× 10 - 3cm2 / min之间，非饱和土壤水扩散率随含水量也呈指数曲线变化。

Some conclusions were drown: there were different sizes of vortex in the cyclone tube; in the inner vortex region the vortex microscal was small, and the energy dispersion rate was high.

这样，气流的脉动带动了颗粒的脉动，气相湍流的扩散同样引起固相颗粒的湍流扩散，而且不同尺度的气相湍流涡旋对不同粒径的颗粒所产生的影响也是不同的。

To simulate the diffusion of the vortex sheet into the flow field as time goes on, Koumoutsakos' analytical solution is employed, in which an effective vorticity flux is derived and used for solving the vorticity diffusion equation.

而涡片之环量随时间扩散进流场之现象则藉由Koumoutsakos之理论，以边界上之等效涡度通量求解扩散方程式，得解析解后，再将之离散为边界附近之新涡泡。

To simulate the diffusion of the vortex sheet into the flow field as time goes on, Koumoutsakos' analytical solution is employed, in which an effective vorticity flux is derived and used for solving the vorticity diffusion equation. The solution is then discretized into blobs (called "-blobs") in the vicinity of the boundary.

而涡片之环量随时间扩散进流场之现象则藉由Koumoutsakos之理论，以边界上之等效涡度通量求解扩散方程式，得解析解后，再将之离散为边界附近之新涡泡。

A thin film of titanium carbide is obtained by vacuum evaporating oftitanium. With diffusion treatment, the existance of titanium carbide is identified by X-raydiffraction analysis. Quantatitive analysis is made by XPS to invetigate diffusion ofcarbon atom between diamond and titanium film.

用真空蒸镀法在金刚石表面镀覆Ti层，并经扩散处理使金刚石表面形成TiC膜，实现了金刚石表面的金属化。X射线衍射分析证实了TiC的存在，利用XPS定量分析验证了在金刚石表面碳原子与钛镀层之间的反应扩散模型。

Crystal interface has two-bladed effects on the hydrogen diffusion.

当钯膜氢含量高时，晶界对扩散主要起促进作用，扩散系数增大。

By using simplified diffusion equation,the element diffusion model was built for 12-slab stack cooling process.

根据氢和碳的元素扩散规律，可知板坯堆冷工艺可以促使氢的扩散，但对中心碳偏析影响不大。

Aiming at the problem in the existing voxelization algorithms, a block-based algorithm is presented: GPU clipping method is used to voxelize the surface in every block, and ray intersection method is adopted to generate seeds filling the inner/outer space of blocks; among blocks, three seed planes are designed to help seeds span the blocks, so that a great deal computation for intersection is avoided.

提出以分块为基础的高分辨率实体体素化算法：在分块内部，采用基于图形处理器(Graphics Processing Unit， GPU)的切面光栅法对分块表面体素化过程进行加速，采用射线求交方式生成种子并进行块内填充；在分块之间，设计了3方向的种子扩散面及跨块扩散机制，避免因分块而导致的大量几何求交运算，提高了效率。

The secondary industry dispersing to suburb and the tertiary industry dispersing to suburb are the outcome of both regulating of shanghai industrial policy and out-migrating of the secondary industry, and a process of the metropolis self-evolution under the background of marketing economy, in which urban functions are diversified and integrated, and it is also in accordance with the general law of urban industry spatial evolution.

上海中心城区的第二产业向郊区扩散，第三产业向中心城区边缘区扩散，受产业布局政策调整和城市不同区域功能分化与职能转移的共同推动。

The influence of steam-system key factors on the Long-term volume stability, including shrinkage and creep, of C50 high- performance concrete is systematic studied and the comprison expression between the internal humidity and self-contraction of C50 high-performance concrete is established in the Steam- environment.

系统研究蒸养制度各个关键因素对于C50管片混凝土的抗氯离子扩散性能的影响，并采用灰色关联分析方法对混凝土的氯离子扩散系数与其关联因子进行灰色关联分析，找出影响混凝土抗氯离子渗透性的主要因素。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。