晶系

The numbers of clusters made up of 1551 and 1541 bonded pairs representing the non-crystal structure occupy predominate position and the small numbers of clusters made up of 1431, 1661 and 1441 bonded pairs coexist in the non-crystal system at 4×10〓K/s cooling rate, thus there exist a large number of icosahedra clusters in the non-crystal system. The numbers of clusters made up of 1421 bonded pairs corresponding to the fcc-like structure occupy predominate position and the small numbers of clusters made up of 1422 and 1551 bonded pairs coexist in the crystal system during the 4×10〓K/s cooling process, thus the system can form the regular fcc-like structure.

在4×10〓K/s的冷速下，标征体系非晶结构的五重对称键型1551和1541所形成的小团簇数量在非晶体系中占主导位置，同时还存在少量的1431、1441和1661等其它键型形成的小团簇，这样，体系中含有大量的二十面体团簇结构；在4×10〓K/s的冷速下，标征面心立方结构的1421键型所形成的小团簇数量在晶体中占第一位，同时还存在一定量的1422、1441和1661等其它类型的键对所形成的团簇，体系最终形成面心立方结构。

The development and utilization of the "three stone" of raw materials, that is, andalusite, sillimanite, kyanite raw materials, to improve the Al-Si refractory microstructure and properties of thermodynamics.

开发利用&三石&原料，即红柱石、硅线石、蓝晶石原料，可以改善铝硅系耐火材料的显微结构和热力学性能。

The numerical results of yield strength, based on considering the lamellar microstructure and the deformation mechanisms such as ordinary slip systems and true twinnings in PST crystals composed of and phase, is obtained by using calculating of resolved shear stresses in all slip systems based on micromechanical method.

基于PST晶体的微结构和相及2相普通位错和孪晶滑移启动，结合细观力学方法，通过数值模拟两相中的各滑移系上的分切应力，得出PST晶体屈服应力和外加载荷与片层之间夹角的关系。

The Company QG chromium carbide hardfacing composite plate, using welding or brazing with metals produced by automatic arc welding alloy powder to add new process methods, the formation of hypereutectic high chromium multi-element alloys superhard wear-resistant layer, can significantly improve easy to wear pieces of equipment and steel production life.

本公司QG碳化铬耐磨堆焊复合钢板，采用焊丝或焊带产生的金属电弧添加粉末合金自动堆焊新工艺方法，形成过共晶高铬多元素合金系超硬耐磨层，可大幅提高易磨损设备及钢板制作件的使用寿命。

Diffusion mechanism,microstructure and optical properties of Ag/Si multilayerson annealing have been investigated by in situ X-ray diffraction,high-resolutiontransmission electron microscopy and UV-VIS-NIR spectrophotometer,Siliconatoms diffusing along silver grain boundaries is suggested as the main diffusionmechanism.

采用原位X—射线衍射、高分辨透射电镜截面观察和光吸收谱测试等手段研究了退火过程中Ag/Si多层膜的扩散、结构演变及光学性质变化，并与可固溶性金属/Si系多层膜进行了比较。揭示了Si原子沿Ag晶界的扩散为主要的扩散机制。

This paper proposes a switched-mode boost DC-DC converter, which doesn't need not only a saw-tooth wave generator but also an error amplifier. By using a comparator and a fixed duty-cycle oscillator, the proposed controller will offer a high DC voltage of 15V to drive the LED backlight driver for Liquid Crystal Display.

中文摘要本论文提出ㄧ种不需锯齿波产生器和误差放大器的架构，其系利用比较器和输出固定责任比的振荡器来替代锯齿波讯号，藉此控制开关的动作，完成升压式直流电压控制晶片，以提供15伏特直流偏压给小尺寸液晶显示器(Liquid Crystal Display， LCD)。

Amorphous or crystalline concretions of pyrite and marc marcasite of variable shape and size have been found in some coal seams in the Permian-Carboniferous Yuemengou Coal Series in Taiyuan, Shanxi.

在太原西山石炭—二迭纪月门沟煤系的某些煤层中，发现有不同形状和大小的硫化铁矿物结核。这种结核有非晶质和结晶质的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。