Why are metals and alloys used?
为什么要使用金属和合金？
Metals can be classified as pure metals and alloys.
金属可分为纯金属与合金两类。
Metals are known to be divided into two kinds: simple metals and alloys.
大家知道，金属分为两类；纯金属和合金。
The current researches on electrodeposition of metals and alloys are reviewed.
对相关离子液体中电沉积金属和合金研究现状进行了总结。
We want to buy Buffing Compounds, Electro, Lustre, Metal Rouge, Electroplating Metals and alloys.
我们要采购擦光化合物，电镀物品，光彩，金属口红，电渡金属和合金。
The thermal activation parameters of metals and alloys in the plastic deformation process are studied.
本文研究了金属和合金塑性变形过程的热激活参量。
Many metals and alloys have high densities and are used in applications which require a high mass-to-volume ratio.
许多金属和合金具有高密度，因此被用在需要较高质量体积比的场合。
It is obvious that rare earths can suppress the oxidation and sulfuration of metals and alloys at high temperatures.
稀土在金属与合金的高温氧化与硫化作用中具有明显的抗蚀特性。
Machining approach is a novel and low-cost technique to manufacture nanostructure metals and alloys in large volume.
切削是一种大批量、低成本制造纳米结构金属和合金的新颖方法。
The study of the structure of metals and alloys, especially by optical and electron microscopy and X-ray diffraction.
金相学，金属结构学以金属与合金结构为研究对象的学科，尤指用光学和电子显微镜使用。
One of the important applications of diamond coatings is as cutting tools for nonmetals, nonferrous metals and alloys.
金刚石薄膜的一个重要用途是用做加工非金属、非铁金属和合金的刀具涂层。
Metallography: Study of the structure of metals and alloys, particularly using microscopic and X-ray diffraction techniques.
金相学：研究金属与合金组织结构的学科，特别指采用显微镜和X射线衍射技术进行的这类研究。
At extremely low temperatures, some metals and alloys lose their resistance to electrical current and become superconductive.
在极低的温度下，某些金属和合金失去其对电流的电阻变成超导体。
The diffusive process of rare earth metals and alloys as well as of ferrosilicon alloys in commercial molten iron is investigated.
本文研究了稀土金属及其合金、硅铁合金在工业铁水中的扩散过程。
A correlation of the orientation of facets for different metals and alloys with lattice structures, SFS and modes of slip was described.
对于不同金属与合金小平面的方位与晶体点阵结构的相互关系，用滑移型和层错能进行描述。
Metallography is the study of the microstructure of metals and alloys by means of the metallurgical microscope and the electron microscope.
金相学是用金相显微镜和电子显微镜对金属和合金的显微结构的研究。
The applications of electrochemical impedance spectroscopy to the research of electrodeposition of various metals and alloys were introduced.
介绍了电化学阻抗谱在各种金属及合金的电沉积研究中的应用。
This paper explains the role of metallic materials grain boundary in high temperature oxidation behaviour of pure metals and alloys in brief.
扼要阐述了金属材料晶界在纯金属与合金高温氧化中的作用。
Why are metals and alloys used? Many metals and alloys have high densities and are used in applications which require a high mass-to-volume ratio.
为什么要使用金属和合金？许多金属和合金具有高密度，因此被用在需要较高质量体积比的场合。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation at near-threshold range in various metals and alloys.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation(FCP)at near-threshold range in various metals and alloys.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
The plane defects of metals and alloys include grain boundary, sub-grain boundary, twins grain boundary, phase boundary, stacking fault, outward surface, etc.
金属和合金中的面缺陷包括晶界、亚晶界、孪晶界、相界、堆垛层错、外表面等。
Dynamic Strain Aging (DSA) is a strengthening phenomenon in metals and alloys caused by the interaction between the diffusive solute atoms and the moving dislocation.
动态应变时效是在金属和合金中，移动着的溶质原子和运动中的位错发生交互作用时所出现的一种强化现象。
This course examines how the presence of 1 -, 2 - and 3d defects and second phases control the mechanical, electromagnetic and chemical behavior of metals and alloys.
本课程将探讨1-、2 -及3维之缺陷以及第二种位相，如何控制各种金属及合金材料之机械、电磁和化学行为。
In extremely low gravity, they have extended our knowledge into the effects of space flight on the human body, the creation of new metals and alloys and solar phenomenon.
在极低重力，他们已经扩展我们的知识的影响及对人体的太空飞行，创造新的金属和合金和太阳的现象。
The structures and properties of liquid metals and alloys do have a significant influence on solidification behavior, solidified microstructure and their final properties.
液态金属的结构和性质对凝固行为、凝固组织以及材料最终的性能有重要的影响。
Many researchers have conducted a lot of relative experiments which reveal that different metals and alloys with different structures can produce different texture on different conditions.
国内外许多研究人员已经做了许多相关实验，通过改变实验条件而改变织构的方向，并且发现了不同结构的金属或合金能产生的不同织构。
Heat treatment is a controlled process used to alter the microstructure of materials such as metals and alloys to impart properties which benefit the working life of a component, for example.
热处理是一个控制过程，用来改变材料(如金属和合金)的微观结构来传递它们的特性，例如可延长组件的使用寿命。
Heat treatment is a controlled process used to alter the microstructure of materials such as metals and alloys to impart properties which benefit the working life of a component, for example.
热处理是一个控制过程，用来改变材料(如金属和合金)的微观结构来传递它们的特性，例如可延长组件的使用寿命。
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