Preparing thin solid film on the metal surface is one of the important methods to improve the metal properties.
在金属表面加工薄膜层是提高材料性能的重要途径之一。
There are many factors which affect the wear of metals, such as load, slide velocity, environmental medium and temperature, metal properties and so on.
影响金属材料磨损的因素很多，如载荷、滑动速度、环境介质、温度、材料的性质等。
Once the part starts to solidify small dendrites of solid material form in the part. During this time metal properties are being determined, and internal stresses are being generated.
在零件开始凝固其内部形成固态金属的小型树枝状结晶期间金属性能被确定，同时也产生了内应力。
It is known that bimetallic and trimetallic catalysts offer improved properties over single metal catalysts.
已知双金属和三金属催化剂提供了优于单金属催化剂的性能。
Metal nanoparticles are the subject of intensive research efforts across the world, due to the differences in the optical properties they exhibit compared to bulk metals.
由于金属纳米粒子与整体金属相比所表现出来的光学特性差异，使其成为全世界深入研究的目标。
In the isolated state gallium salt and organic compounds are non-conductive but Hla and his colleagues have evidence that these two substances formed by the metal lines are superconducting properties.
在隔离状态下镓盐与有机复合物皆不导电，但Hla和他的同事们有证据表明由这两种物质组成的金属线有超导特性。
ALLOY: a substance with metallic properties composed of two or more chemical elements at least one of which is metal.
合金：由一种金属跟另一种或几种金属或非金属所组成的具有金属特性的物质。
The microstructure evolution, which is governed by temperature, strain and strain rate during hot metal forming, is a key factor to the mechanical properties.
金属在热成形过程中的微观组织演变是影响产品力学性能的关键因素，该演变过程取决于温度、应变和应变速率。
The part of a metal that is not melted during cutting, brazing, or welding, but whose microstructure and physical properties are altered by these processes.
在经过切割、铜焊、焊接后，金属中没有熔融的部分，但其微观结构和物理特性已被改变。
Adding a back lining at one side of the porous metal material is an effective and workable way to improve its sound absorption properties.
而在多孔金属材料一侧添加背衬是一种提高吸声性能的有效可行的方法。
The DC electrodeposition method can be used to prepare highly ordered metal nanowire arrays that their structures and properties can be adjusted by controlling the pore sizes of the AAO templates.
直流电沉积法可用来制备高度有序的金属纳米线阵列，且通过控制模板孔径可实现对其结构和性能的调控。
Alloy steels are basically carbon steels with additional elements added to alter the characteristics and bring about a predictable change in the mechanical properties of the alloyed metal.
合金钢本质上是碳钢加上其它的元素来改变它的特性，而给合金金属带来一种预期的机械性能。
Mechanical properties of the weld metal Mechanical properties of the weld metal are not part of the classification.
焊缝金属的机械性能焊缝金属的机械性能不是分类中的一部分。
Heat treatment is the operation of heating and cooling a metal in its solid state to change its physical properties.
热处理是将金属在固态加热和冷却以改变其物理性能的操作。
Forging refines the grain structure and improves physical properties of the metal.
铸造细化金属的晶粒组织、改善其物理性能。
ALLOY, a mixture of a basic metal and small amounts of other metals to change the properties of the basic metal.
合金，在金属中加人少量其他金属，而改变其性质的一种金属混合物。
This paper derives the best range of thickness of the materials by analyzing the main factors influencing the sound absorption properties of porous metal materials.
通过分析影响多孔金属材料吸声性能的主要因素，推导出材料的最佳厚度范围；
Metal foam is a functional material, its unique structure and properties have been increasingly applied.
泡沫金属是一种新型的多孔功能材料，具有独特的结构和性能，其应用范围日益扩大。
In addition, the essential mechanical properties of metal foam are introduced briefly.
此外，简单介绍了泡沫金属的基本力学性质。
The fine grain structure was built in the forging process, and the physical properties of the metal were improved.
锻件过程建造了精致的颗粒结构，并改进了金属的物理属性。
In addition, series load experiments were used to study properties of weld and base metal.
另外采用系列加载试验对焊缝、母材的性能进行了研究。
Are tensile bars used as a means of controlling physical properties of the metal?
是否使用抗拉试棒来控制金属的物理特性？
Simulating different solidification cooling rate with step-metal mould and sand mould, the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.
利用阶梯型腔金属模和砂型模拟不同的冷却速度，研究了冷却速度对高硼钢凝固组织和性能的影响。
Cold heading can improve the utilization rate of material, the productivity and themechanic properties of metal parts.
冷镦工艺可以提高材料利用率、生产率以及改善金属零件的机械性能。
We can get better bandpass filtering properties by adjusting the size of metal sheet and the number of layers.
调节此滤波器的金属片的尺寸和介质片的层数我们得到了较好的带通特性。
This paper discusses the characteristics, preparations, properties, applications and development of nanometer metal materials.
综合论述了纳米金属材料的特性、制备、性能、应用及发展前景。
The metal we need requires the following particular properties.
我们所需要的金属要求具有下列特性。
The surface composition and morphology of hydrogen storage alloys have an important influence on the electrochemical properties of metal hydride electrodes.
贮氢合金的表面成分和形态对金属氢化物电极的电化学性能具有重大影响。
The surface composition and morphology of hydrogen storage alloys have an important influence on the electrochemical properties of metal hydride electrodes.
贮氢合金的表面成分和形态对金属氢化物电极的电化学性能具有重大影响。
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