Magnetic properties of tidal flat sediments of the Yangtze Estaury, and the type, grain size and source of magnetic minerals. 长江口潮滩沉积物的磁性特征及其反映的磁性矿物类型、晶粒大小和物质来源;
The nano-material could improve the fluidity and flat of melted spraying powder, thereby change the growth mechanics of coating grain. 纳米材料的加入,改善了喷涂熔融态粉末的流动性及平铺性能,改变了涂层晶粒生长机制。
Determines the optimum working situation by cross experimental design directing against Al2O3, SiO2 through type-10 flat air flow miller. In the optimum situation, ultimate grain size of two kinds of material are 4. 8 μ m, 3. 2 μ m 针对Al2O3、SiO2物料在10型扁平式气流磨上利用正交实验方法确定了最优工况,在最优工况下,得出两种物料的极限粒径分别为4.8μm,3.2μm
The composite powders after MA are fine and flat. The formed defects such as free surface, grain boundary, sub grain boundary and dislocation decrease diffusion activity energy, which is the important reason for developing super saturated solid solution and promoting the second phase precipitation. MA导致复合粉末细化与扁平化,自由表面、晶界、亚晶界以及位错等晶体缺陷的急剧增加而明显地降低了扩散激活能,它是形成过饱和固溶体和促进第二相析出的主要原因。
In contrast to the tidal flat on the open coast, the characteristics of grain size parameters and the relationships among these parameters are obviously different due to different hydrodynamic conditions. 与开敞海岸淤泥质潮滩粒度特征相比,研究区的粒度参数组合特征具有明显差异,这可能是由于水动力条件的差异引起的。
The mechanism factors including normal force, stock removal rate, grinding ratio, area ratio of wear flat have been measured, the grain wear mechanism and stock removal mechanism of abrasive belt have been revealed, some important conclusions have been derived. 测定了此种磨削方式下的相对金属切除率、法向磨削力、磨削比、磨粒磨损平面面积率等机理参数,揭示了砂带的金属去除机理和磨损机理,得出了一些重要结论。
Preliminary research of change law on "three-temperature" in flat silo change law and maths model of temperature of stored grain in large warehouse 浅圆仓三温变化特性初探高大平房仓储粮温度变化规律及数学模型研究
Manufacturing and Sliding Installation of the Arched Slab in the Flat Grain Warehouse 平房仓粮库拱板的制作与滑移安装
The arched slab of the roof structure in the Flat Grain Warehouse is a space thinwalled prestressed structure with large spans, thin walls and complex structures. 平房仓粮库工程屋盖结构拱板为空间薄壁预应力结构,跨度大、壁薄、结构复杂。
It is important that all traditional determining devices of water content based on the electric properties of grain use the structure of parallel flat capacitor. This limits to its use on many drying machines, for example pin grain drying machine. 更重要的是传统的基于电特性的谷物水分测量都是采用平行平板电容器的结构,这限制了它在许多干燥机上的应用,例如平仓式谷物干燥机。
C1-treated let the lattice constant, crystal cell volume and average grain size decrease. Meanwhile Cl-treated make the surface of CdTe thin films more flat, and have better grain size uniformity. 氯化处理使得样品的晶格常数、晶胞体积及晶粒尺寸都有所减小,同时薄膜表面更加平整、晶粒尺寸更为均匀且能起到钝化晶界的作用。
For the VOx films grown on Si3N4/ Si substrate, the grain sizes are small and the film is flat. However, for the films grown on glass substrate or Si substrate, the grain sizes are large, and the column-like growth mode is obvious. Si3N4/Si衬底上生长的氧化钒薄膜晶粒细小,薄膜较为平坦;而玻璃衬底和Si衬底上的晶粒较为粗大,薄膜的柱状生长较为明显。