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mo
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     Structure, Electronic and Optical Properties of Er-doped Si-rich SiO_2 Thin Films and Reactivity of Water with Pd-deposited MgO(100) Thin Films on Mo(100)
     掺铒富硅二氧化硅的结构、电学及光学性质与(100)表面外延生长氧化镁(100)薄膜上淀积钯与水反应的研究
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     THE DECOMPOSITION OF δ-FERRITE IN A 18/8 STAINLESS STEEL CONTAINING 0.34% Ti AND 0.24% Mo
     含少量、钛18/8Cr-Ni不锈钢中δ-铁素体的恒温分解
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     Automatic Analyzer of Six Elements Mn、Cr、P、Mo、V、Ni in Alloy Steels
     合金钢中锰、铬、磷、、钒、镍六元素自动分析仪
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     Purity and doping possibilities of Al_2O_3 and YAG molten in Mo crucibles and crystals grown from this melt
     用坩埚生长Al_2O_3和YAG晶体的掺杂
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     The Relationship between Molybdenum (Mo) and Keshan Disease in the Mo-Mine Area
     从矿克山病区看与克山病区的关系
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  “mo”译为未确定词的双语例句
     Study on Synthesis, Characterization and Catalytic Properties of Mo(Ⅵ) Catalysts Used in the Epoxidation of Cyclohexene
     环己烯环氧化催化剂的合成、表征及其催化性能研究
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     Structure and Behavior of Mo and Mo-N Surface Modification Layers on Ti6A14V Alloy by Double Glow Plasma Surface Alloying Technique
     Ti6A14V合金表面双层辉光离子渗Mo及Mo-N共渗改性层的组织结构及性能研究
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     The Full cDNA Cloning and Expression Regulation of Rabbit Meiosis Activating Sterol (MAS) Synthetase CYP51 and Metabolic Enzyme Δ 14-SR、C4MO
     兔促减数分裂甾醇(MAS)合成酶CYP51及代谢酶Δ14-SR、C4MO的分子全长克隆及表达调控分析
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     Methane Dehydrogenation and Aromatization: A Further Study on the Bifunctionality of Mo/HZSM-5 Catalysts
     甲烷脱氢芳构化:Mo/HZSM-5催化剂双功能特性的进一步研究
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     Microstructure and Mechanical Properties of NiAl-Cr(Mo) Eutectic Alloys Processed by Various New Routes
     几种新工艺制备的NiAl-Cr(Mo)共晶合金的组织与机械性能
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  相似匹配句对
     Mo.
     Mo、Co主要分布在籽粒中;
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     Mo;
     Mo ;
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  mo
Synthesis, characterization and hydrogen storage capacity of MS2 (M = Mo, Ti) nanotubes
      
The structure, morphology and hydrogen-storage capacity of MS2 (M = Mo, Ti) nanotubes prepared by different experimental methods were studied.
      
The photocatalytic degradation of methyl orange (MO) in aqueous solution under 365 nm irradiation on TiO2 and Ag/TiO2 thin films was investigated.
      
Syntheses, spectra and crystal structures of a series of Mo/S(O) complexes containing oxalate ligand
      
Maximum power densities 40 mW·cm-2 and 130 mW·cm-2 for the PEN configuration with a Mo-Ni-S-based composite anode, nano-composite electrolyte (Li2SO4+Al2O3) film and a NiO-based composite cathode were achieved at 600°C and 680°C, respectively.
      
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The formation of σ-phase in a 18% Cr 11% Ni 2.6% Mo 0.8% Ti stainless steel has been investigated. Microscopic and X-ray examinations showed that the formationσf σ-phase from δ-ferrite was accompanied by the formation of austenite, the reaction being most rapid at 850℃

本文叙述在含钼、钛的18/8型不锈钢中σ-相形成的过程及其对钢的性能的影响。 金相及X线衍射分析证实:在复相铬镍不锈钢中,铁素体分解成σ-相以在850℃为最快。应用特殊的侵蚀剂及高倍的金相检查,发现σ-相的沉淀开始发生于铁素体相界;伴随着σ-相的形成,其周围铁素体重结晶为奥氏体。 由于σ-相的形成,钢的硬度增加,韧性显著降低,因而严重地影响了钢的安全使用,但是适当的热处理可以恢复其原来的组织及性能。

With the rapid progress of the electronic art, there has been a steadily increasing demand for still wider-bandwidth amplifiers. The recent introduction of distributed amplification concept has provided a new technique and powerful means for designing amplifiers with top cutoff frequencies far in excess of those previously obtainable with,ordinary amplifier circuits. A distributed amplifier of the low-pass type can easily be constructed to have a uniform frequency response from audio frequencies to frequencies...

With the rapid progress of the electronic art, there has been a steadily increasing demand for still wider-bandwidth amplifiers. The recent introduction of distributed amplification concept has provided a new technique and powerful means for designing amplifiers with top cutoff frequencies far in excess of those previously obtainable with,ordinary amplifier circuits. A distributed amplifier of the low-pass type can easily be constructed to have a uniform frequency response from audio frequencies to frequencies as high as several hundred me using conventional vacuum tubes. Unlike conventional circuits, distributed amplifiers have an attainable gain-bandwidth product which is not limited by shunt capacitance associated with the vacuum tubes and circuit wiring; the high-frequency limit being determined entirely by high-frequency effects within the tube proper.The purpose of this paper is to describe the basic principle of distributed amplification and to show how such an amplifier employing various types of transmission lines may be designed. Practical methods hi design and design details are given for a three-stage distributed amplifier, using fourteen 6AK5 pentodes with a frequency response of 0.1 mo to 140 mo and a gain of 33±1 db.Both the negative mutual-inductance m-derived and constant K artificial delay lines hare been used. The former offers the advantage of a more linear phase characteristic and a more uniform response both in amplitude and delay time.The experimental results corroborate the predictions based on the first-order theory described in this paper.

分布式放大是最近宽频带放大的最大成就,过去多年来电子学所应用的各种宽频带放大方法,其高频部分因受电子管电容和线路的分布电容所限制,不能获得理想的结果,而利用分布式放大的理论,所制成的宽频带放大器,远较一般普通的宽频带放大器,有更为宽阔的频带;从它的设计和构造上来看,也较负反馈的宽频带放大器为简单。制造一架自数千周至数百兆周的分布式放大器,在技术上并没有很大困难。本文拟对分布式放大的原理作扼要的分析;并提出了采用各类型仿真线所构成的分布式放大器的设计方法,并利用该设计方法,试作了一只三级十四管的分布式放大器,其增益为33±<1分贝,频宽自100千周至140兆周。由实验结果证明,采用m导出式低通滤波器所构成的仿真线的分布式放大器,实较用常K式者,具有更佳的相移特性和频率特性,这与理论上的分析是一致的。

The decomposition of δ-ferrite at 750°,850° and 950℃ in quenched 18/8/3/1Cr-Ni-Mo-Ti stainless steel specimens has been studied microscopically,thetransformation products being electrolytically extracted and identified by X-raydiffraction method.At early stages of decomposition accicular austenite forms along certaincrystallographic planes of δ-ferrite.As a result,the remaining ferrite becomesenriched in Cr,Mo and impoverished in C,Ni,Mn,and was found to transformsubsequently to sigma which begins...

The decomposition of δ-ferrite at 750°,850° and 950℃ in quenched 18/8/3/1Cr-Ni-Mo-Ti stainless steel specimens has been studied microscopically,thetransformation products being electrolytically extracted and identified by X-raydiffraction method.At early stages of decomposition accicular austenite forms along certaincrystallographic planes of δ-ferrite.As a result,the remaining ferrite becomesenriched in Cr,Mo and impoverished in C,Ni,Mn,and was found to transformsubsequently to sigma which begins after heating for 5-6 minutes at 850℃.Precipitation of titanium carbide first occurs in the ferrite grains,later itmakes appearance along the ferrite-austenite interphase boundaries and along thetwinning planes within the austenite grain.The precipitation of titanium carbideseems to have no appreciable effect on the sequence of decomposition of δ-ferrite.The impact value of the steel was found to decrease very markedly before thecommencement of the δ→σ transformation and it is considered that this mightbe associated with the titanium carbide precipitation.

应用金相法研究了18/8/3/1 Cr-Ni-Mo-Ti不锈钢经1300℃固溶处理后在950℃,850℃及750℃恒温分解初期金相组织的变化,并用电解分离及X射线衍射方法鉴定在不同恒温分解阶段δ-铁素体分解的产物。观察到由于提高了固溶处理温度,高温固定下来的铁素体极为不稳定,在分解为奥氏体的同时有TiC的沉淀出现。当δ→γ的转变,由于Cr,Mo等合金元素的偏聚不能继续进行时,才发现残留的δ-铁素体转变为σ-相。过去一般认为18/8型不锈钢在550—1000℃保温后,室温冲击靭性的降低是由于σ-相的沉淀所引起的,试验结果指出在σ-相出现之前,钢的冲击靭性已显著下降,这种现象可能与δ-铁素体分解初期TiC的沉淀有关。

 
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