采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。
Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh.
采用相场方法模拟纯物质三维枝晶生长。
The phase-field method is applied to simulate dendritic growth in the three-dimensional space.
以两种不同结构的空气搅拌式种分槽为研究对象，完成了晶种分解过程气—液两相流动的三维数值模拟。
The air-liquid two-phase flow of the seed precipitation process in two air-agitated tanks with different structures was numerical simulated in three dimensions.
第三章研究了一维三方准晶的弹性问题。
The third chapter investigated the elasticity problem of one dimensional trigonal QCs.
模拟结果表明熔体过冷度和树枝晶的计盒维数呈近似抛物线关系。
The results of simulations indicate that the relationship between melt undercooling and box counting dimension of dendrite is close to parabola.
利用三维积层混合云人工增雨数值模式对人工增雨引晶催化后的各种微物理量变化及催化效应进行了模拟。
By means of three dimension cumulus mix cloud man-made numerical model, make a simulation to all kinds of micro physical amount change after man-made rainfall seeding and effect of seeding.
维氏硬度测试结果显示，出现在愈合区的铁素体组织维氏硬度高于基体区铁素体组织，可能原因是愈合区中出现的多边晶块结构所引发的强化。
Vickers hardness test showed that the hardness of ferrite in healing area is higher than that in matrix, which may result from the strengthening of polyangular grains.
图1。一批维尔纳叶法工艺生长的半晶柱，演示了这种晶体生长的各种颜色。
Figure 1. A selection of half boules grown by the Verneuil process, illustrating many of the colors these crystals are grown in.
实验结果除了薄片状氧化钼晶体外，还形成了由晶须凝聚组成的各种形态的二维分形结构。
Some thin molybdena crystals and various two-dimensional fractal structures consisted of the molybdena whiskers were observed.
研究了十二次对称二维准晶的平面弹性问题。
The paper considers the plane elastic problems of dodecagonal system in two dimensional quasicrystals.
根据现代关于晶间界面的研究可知，晶界和相界多具有二维周期结构。
According to the recent studies on interfaces in crystals, it is evident that most grain boundaries and phase boundaries have two dimensional periodic structures.
采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。
The dendrite growth of pure metal in undercooled melts was simulated by using phase field model(PFM) and finite difference schemes.
一种制备三维多枝状硒化铜纳米晶光电薄膜材料的化学方法。
The invention relates to a chemical method for preparing three-dimensional dendritic copper selenide nano-crystalline photoelectric film material.
研究结果表明，采用射流电铸快速成型技术可直接成型纳米晶金属零件和三维大块体纳米晶材料。
The result shows that nanocrystalline metal parts and dimensional bulk nanocrystalline metal materials can be fabricated rapidly by the technology of rapid prototyping oriented jet electroforming.
首先，采用分块二维熵图像阈值法进行蜡晶图像的自动阈值分割；
The 2D entropy threshold method was used to segment the wax crystal images.
由电 镜和偏光显微镜研究的凝胶形态学表明，凝胶中存在由相互缠结的三维纤维网络构 成的球晶。
The studies of polarized optical microscopy and TEM indicate the formation of spherulites undergoing aggregation of self-assembled fibers.
显微硬度测试表明，相比基质玻璃，热处理后的微晶玻璃的维氏硬度均有增强(17.26% - 42.04%)。
The microhardness measurement shows that the Vickers microhardness (Hv) values of the heat-treated glass samples are larger than that of the based glass about 17.26%-42.04%.
采用二维有限元数值方法分析了焊接热影响区粗晶区（CGHAZ）中局部硬化区（LHZ）的作用。
The effect of the local hard zone (LHZ) distributed in the coarse grained HAZ (CGHAZ) has been analyzed by 2-dimensional FEM on a mechanical model of the weld CGHAZ.
膨润土胶体中膨润土以“准晶”状动态存在，准晶间以“边-面”和“边-边”的共同作用形成“卡房式”三维网络状凝胶结构。
In bentonite colloid, the quasicrystals is dynamic and the house-of-cards structure is made from the quasicrystals by edge-to-face and edge-to-edge forms.
铅锡合金的准二维电沉积物具有伪共晶-固溶体双层结构。
A two-layered structure of eutectic-solid sulotion is formed in the microstructure of Pb-Sn alloy obtained from quasi-two-dimensional electrodeposition.
铅锡合金的准二维电沉积物具有伪共晶-固溶体双层结构。
A two-layered structure of eutectic-solid sulotion is formed in the microstructure of Pb-Sn alloy obtained from quasi-two-dimensional electrodeposition.
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