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metal
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  金属
    A Unified Macro-and Micro-mechanics Constitutive Model and Its Applications for Fiber Reinforced Metal Matrix Composites
    纤维增强金属基复合材料宏-细观统一本构模型及应用研究
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    Electrochemical, STM Tip-induced, Template Synthesis Fabrication of Surface Metal Nanostructures
    表面金属纳米结构体系的电化学、STM针尖诱导和模板法构筑及其表征
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    Metal、Alloy Nanoscale System Computation and Simulation
    金属、合金纳米体系的计算与模拟
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    Study on the Metal Ion Imprinted Polymeric Microspheres
    金属离子印迹聚合物微球的研究
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    Study on the Preparation, Property and Application of Microstructure-controlled Metal Oxide Nanocrystals
    纳米金属氧化物的微结构控制及其应用性能研究
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  “metal”译为未确定词的双语例句
    Synthesis and Properties of Novel Carbon Nanotubes/Polymer Graft Composites and Metal Complexes
    碳纳米管/高分子接枝复合物及其配合物的合成与性能研究
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    Assembly, Structures and Properties of Polymer Nanotubes and Polymer/Metal Coaxial Nanocables
    聚合物纳米管和聚合物包覆金属同轴纳米电缆组装、结构与性能
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    Research on the Design, Fabrication, and Properties of Steel/Zinc Aseismic Metal Matrix Composites
    钢/锌双金属抗震复合材料的设计、制备和性能研究
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    The Study of Physical Properties of Organic Metal Chelates as Organic Electroluminescent Materials
    有机金属配合物电致发光材料的物理性能研究
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    Liquid-Phase Synthesis, Structural Characterization and Properties of Some Metal and Alloy Nanomaterials
    若干贵金属及合金纳米材料的液相合成、结构表征与性质
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  metal
Design and synthesis of structurally well-defined functional polypropylenes via transition metal-mediated olefin polymerization
      
This paper summarizes our recent effort to access structurally well-defined functional polypropylenes via transition metal-mediated olefin polymerization.
      
XRD pattern and SEM micrograph showed a good dispersion of ammonium carnallite and anhydrous magnesium chloride crystals with well-distributed big grains, just enough to meet the need for the production of magnesium metal in the electrolysis process.
      
Syntheses and metal ions recognition of dendritic calix[n]arenes (n = 6,8) amide derivative
      
The recognition properties of these amide derivatives for several kinds of metal ions were studied with UV-Vis spectroscopy.
      
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Many oxides of heavy metals when existing not in exact stoichiometric combining ratios exhibit the properties of a semi-conductor.The resistance ofsuch materials has a very large negative temperature coeffcient.Such thermallysensitive resistors,known as“thermisters”,have found wide range of appli-cations in thermometry,communication engineering,etc.In this investigationwe tried over hundred samples of metallic oxides and their mixtures fusedwith glass powder to form small compact bead on Pt lead wires.The...

Many oxides of heavy metals when existing not in exact stoichiometric combining ratios exhibit the properties of a semi-conductor.The resistance ofsuch materials has a very large negative temperature coeffcient.Such thermallysensitive resistors,known as“thermisters”,have found wide range of appli-cations in thermometry,communication engineering,etc.In this investigationwe tried over hundred samples of metallic oxides and their mixtures fusedwith glass powder to form small compact bead on Pt lead wires.The sampleswere treated by a new firing technique which is very convenient in laboratory.Some samples made from mixed oxides of Mn,Co and Ni showing a resistanceof 10~4-10~5 ohms at room temperature and 10-100 ohms at 500℃ seem.verypromising for practical purposes.

多种重金属的氧化物,经高温煅烧后,均可呈现电子性半导体的性质,其电导随温度急剧变化,故可作测量温度之用,通常称热感电阻。从电导的对数与温度的倒数的图中,可以推算半导体电导性所需的电子能位差。本文试验氧化物混入玻璃粉制成的小珠,用半导体体内电热法制成热感电阻,在常温时的电阻值为10~4—10~5欧姆,在500℃时只有10—100欧姆。半导体与铂导体线间的电性接触,经实验推知是良好的。这种制备方法,在实验室里,非常简易。经多次试验,以混合锰、钴、镍的氧化物和玻璃粉制成的电导性较大,有实用价值。

The“Drop-and-Cover”method developed by us for preparing replicas is carriedout by applying first a few drops of an organic solvent on a prepared surface of a me-tal specimen and then covering with a sheet of dellulose acetate or similar materials.Through the softening action of the solvent on the plastic sheet and the exclusion ofair between the metal surface and sheet,atmospheric pressure will bring intimate contactof the two together,thus producing a“negative”replica.A“positive”replica may bemade from...

The“Drop-and-Cover”method developed by us for preparing replicas is carriedout by applying first a few drops of an organic solvent on a prepared surface of a me-tal specimen and then covering with a sheet of dellulose acetate or similar materials.Through the softening action of the solvent on the plastic sheet and the exclusion ofair between the metal surface and sheet,atmospheric pressure will bring intimate contactof the two together,thus producing a“negative”replica.A“positive”replica may bemade from this when required.These replicas can be used directly for metallographicstudies either on a biological or a metallurgical microscope without any furthermodification.

本文讨论如何应用“滴液盖片法”制造胶质代替膜来代替不透明的金属样品使能直接利用生物显微镜观察金属内结构,同时亦可利用金相显微镜观察而得到同一结果。

A critical review of literature on the physico-chemical aspects of vacuum melting of metals and alloys, with particular reference to the thermodynamics and kinetics of degassing, distillation of impurity or alloying elements, deoxidation, and metal-crucible reactions. Fields of further research work are suggested.

真空对熔炼过程的影响。脫气的热力学基础;气体在鉄、鎳、钴中的溶解度、活度;第三元素的影响。杂貭和合金元素在真空条件下的揮发;揮发过程中合金組成变化的規律;揮发系数。液态金属中氧的活度;氫脫氧;揮发脫氧;碳脫氧。坩堝耐火材料与熔池之間的反应;坩堝反应与脫氧的关系。真空熔炼中各类反应的动力学;扩散;揮发速率及真空度对揮发速率的影响;脫气速率;脫氧速率;坩堝反应速率?赜诮窈笳婵杖哿段锢砘а芯抗ぷ鞯囊庖姟?

 
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