金属

ALL METAL/DISC: Push and release this button to alternate between a true all-metal mode or a discrimination mode of operation.

全金属/盘：推进和释放之间的真正的全金属模式或歧视的运作模式，此按钮以备用。

JR2 rectangle metal hoses, the use of all-metal structure products.

JR2矩型金属软管，本产品采用全金属结构。

Periodic Table Ⅵ B family had steel gray metallic luster of the solid metal transition elements, two kinds of polycrystalline and single crystal allotrope.

周期表中ⅥB族有钢灰色金属光泽的固体金属过渡元素，有多晶和单晶两种同素异形晶体。

These foams enlarge the application range of cellular materials because of their excellent physical and mechanical properties, as well as their relative amenability to recycling compared to polymeric foams.

并且泡沫金属相对于泡沫塑料具有优良的物理性质和力学性质以及高循环的利用率，所以泡沫金属也逐渐成为一种新的工程材料。

Dimethylhexane-1,6-dimethyleurethane is the key material for preparation of 1,6-hexamethylene diisocyanate by non-phosgene route. Our work mainly focuses on the study of the catalytic performances of metal oxysalts and metal oxides for the ammonolysis of DMC to HDU-M. Experiment effect showed the ammonolysis was omposed by two steps, in which the first step was easier to occur than the second.

中文摘要六亚甲基-1，6-二氨基甲酸甲酯是非光气合成六亚甲基二异氰酸酯的关键原料，本文主要对金属含氧酸盐和金属氧化物这两类用于碳酸二甲酯胺解合成HDU-M 的催化剂进行了初步研究并优化了工艺条件。

It is arranged by the pressed corrugated wire mesh pieces,with inclination angle of 30 or 45 degrees for the corrugated symmetrical line.

金属丝网填料目前已成为最重要的高效精密填表料之一，它是由压成波纹的金属丝网片排列而成。

By applying the smoothed particle hydrodynamics method to the detonation driving plate problems, a clear wave structure in the metal plate and the varying process of the projection angle were obtained.

将光滑粒子法(smoothed particle hydrodynamics method， SPH)应用于金属平板爆轰驱动过程的数值模拟，得到了炸药与金属相互作用的清晰的图像和平板抛射角的变化。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

The model was used to simulate the angular velocity distribution of the liquid Al Si alloy under different magnetic intensity .

在对电磁离心工艺深入分析的基础上，建立了该工艺过程中液态金属角速度分布数学模型·并模拟了不同磁场强度下，液态金属角速度分布·结果表明：为避免铸件产生缩松，在电磁离心铸造过程中，必须有合适的磁场强

In metal material production processing process, the metal material annealing is one kind of extremely important link.

在金属材料生产加工过程中，金属材料的退火是一种非常重要的环节。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。