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相变
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  “相变—”译为未确定词的双语例句
     PHASE TRANSITION IN POLYCRYSTALLINE FERROELECTRIC THIN FILMSSTRESS AND SIZE EFFECTS
     多晶铁电薄膜的相变——应力和晶粒尺寸效应
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     DEFORMATION INDUCED FERRITE TRANSFORMATIONPHENOMENA AND THEORY
     变形诱导铁素体相变——现象与理论
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     Study on the Method For Heat Transfer Calculation of Furnace Side of Phase-Changing & Liquid-Immersing Hot Water Boiler
     相变—液浴式燃气热水锅炉炉侧传热的计算方法研究
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     Experimental Studies on the Behavior of Phase-Changing & Liquid-Immersing Hot Water Boiler
     相变—液浴式热水锅炉工作特性的实验研究
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     Rapid Phase Transition-Issues to be Noted in LNG Transportation
     快速相变——在LNG储运中应注意的问题
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  相似匹配句对
     Martensitic Transformation
     马氏体相变
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     Incommensurate Phase Transition
     无公度相变
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     INTERNAL FRICTION ASSOCIATED WITH PHASE TRANSFORMATION IN Ti-H ALLOYS
     TiH 合金的相变内耗
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     The mechanism of R-F phase transition is discussed.
     对RF相变的机制进行了讨论.
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  phase-
Using a Whitney decomposition in the Fourier plane, a general bilinear operator is represented as infinite discrete sums of time-frequency paraproducts obtained by associating wave-packets with tiles in phase-plane.
      
The latter result is the main theorem proved in Part in Part II, our subsequent article [11], using phase-plane analysis.
      
The phase-transfer of oleic acid-stabilized CdSe nanocrystals into PBS buffer solutions was also studied for their potentials in biological applications.
      
Because of the broad application of multilevel converters in the high-power area, a cascaded multilevel voltage-source inverter with phase-shifted SPWM (PS-SPWM) switching scheme is proposed as a static synchronous compensator (STATCOM).
      
The holographic reconstructing algorithm and its error analysis about phase-shifting phase measurement
      
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本文叙述和讨论了沸腾钢和铁静钢钢三中板机械性能的系统研究和初步生产试验的经过和结果. 在初步生产试验中,证明了控制加工温度、压下规程、冷却速度和进行低温回火可以提高钢三中板的机械性能和冷弯性能. 在系统的研究中,找出了钢三中板的机械性能和冷弯性能与其显微结构和晶粒度之间的关系,以及进一步了解了原始奥氏体晶粒度和冷却速度对於成品的显微结构和晶粒度的影响.如果原始奥氏体晶粒很大(1号或以上),则成品的晶粒也很粗大,且易生成魏氏组织,对降伏强度和冷弯性能都有不良的影响;反之,如果奥氏体晶粒细小(6号或更小),则易生成细小均匀和等轴的成品晶粒,提高了成品的机械性能和冷弯性能;在相变期间冷却速度过低便易生成带状组织,对各种机械性能和冷弯性能都有不良的影响. 在系统的研究中并着重研究了奥氏体晶粒度在热加工过程中所发生的变化.实验结果指出,钢三的奥氏体晶粒经过加工后发生细化,但随着保温时间的增加又重新长大.奥氏体晶粒细化的程度主要决定於未加工前的晶粒大小和加工量,长大的程度则主要决定於保温时间、加工量和温度.因此在多次重复的热加工过程中,各次的加工量对於细化奥氏体晶粒便有了积累作用.每次加工之间的间隔时间愈短,...

本文叙述和讨论了沸腾钢和铁静钢钢三中板机械性能的系统研究和初步生产试验的经过和结果. 在初步生产试验中,证明了控制加工温度、压下规程、冷却速度和进行低温回火可以提高钢三中板的机械性能和冷弯性能. 在系统的研究中,找出了钢三中板的机械性能和冷弯性能与其显微结构和晶粒度之间的关系,以及进一步了解了原始奥氏体晶粒度和冷却速度对於成品的显微结构和晶粒度的影响.如果原始奥氏体晶粒很大(1号或以上),则成品的晶粒也很粗大,且易生成魏氏组织,对降伏强度和冷弯性能都有不良的影响;反之,如果奥氏体晶粒细小(6号或更小),则易生成细小均匀和等轴的成品晶粒,提高了成品的机械性能和冷弯性能;在相变期间冷却速度过低便易生成带状组织,对各种机械性能和冷弯性能都有不良的影响. 在系统的研究中并着重研究了奥氏体晶粒度在热加工过程中所发生的变化.实验结果指出,钢三的奥氏体晶粒经过加工后发生细化,但随着保温时间的增加又重新长大.奥氏体晶粒细化的程度主要决定於未加工前的晶粒大小和加工量,长大的程度则主要决定於保温时间、加工量和温度.因此在多次重复的热加工过程中,各次的加工量对於细化奥氏体晶粒便有了积累作用.每次加工之间的间隔时间愈短,积累作用也就愈显著.如果在轧钢过程中,缩短了各道次之间的间隔时间。增加了压下率,並在停轧后使钢板迅速冷却到相变点,便可能得到转变前的细小的奥氏体晶粒.

The formation of Widmanst(a|¨)tten structure of alpha iron in hypoeutectoidsteels was investigated in 0.27,0.40,0.52 and 0.60% carbon steels.Specimenswere heated to 860° and 1240℃ in vacuo and cooled at different rates to roomtemperature or isothermally treated at various temperatures between 650° and750℃ in vacuo.It was shown that the Widmanst(a|¨)tten structure of alpha ironproduced in 0.27,0.40 and 0.52% carbon steels was always accompanied by asurface relief of the type associated with bainite transformation.The...

The formation of Widmanst(a|¨)tten structure of alpha iron in hypoeutectoidsteels was investigated in 0.27,0.40,0.52 and 0.60% carbon steels.Specimenswere heated to 860° and 1240℃ in vacuo and cooled at different rates to roomtemperature or isothermally treated at various temperatures between 650° and750℃ in vacuo.It was shown that the Widmanst(a|¨)tten structure of alpha ironproduced in 0.27,0.40 and 0.52% carbon steels was always accompanied by asurface relief of the type associated with bainite transformation.The surfacerelief was not observed when conditions were not favourable for the productionof Widmanst(a|¨)tten structure.The effects of various factors on the formation of Widmanst(a|¨)tten structure ofalpha iron are discussed.It is suggested that the absence of Widmanst(a|¨)ttenstructure in slowly cooled specimens,and in specimens with fine austenitic grains,is due to the formation of grain boundary ferrite,which enriches the remainingaustenite with carbon,thereby prevents the formation of carbon-free bainite.The experimental results showed that austenite may decompose by bainitetransformation at temperatures as high as 750℃.

试验证明亚共析钢中魏氏组织的α铁系以贝茵体型相变的机构形成,相当于无碳贝茵体。奥氏体晶粒尺度、碳含量、温度以及冷却速度对魏氏组织的影响都很容易根据贝茵体形成机构的理论加以解释。

Over 200 Cr-Mn-C-N experimental steels have been systematically studied bya combination of microscopic examination,X-ray diffraction,electrolytic extraction,chemical analysis,hardness and magnetic measurements,density and dilatometricmethods,oxidation test,tensile tests at both room-and elevated-temperatures,creep-rupture test,etc.,and the main findings are presented as follow:(1)Stable austenitic region.(2)Solid state reactions:martensitic transformation,precipitation reactions,and formation of sigma phase.(3)Room-and...

Over 200 Cr-Mn-C-N experimental steels have been systematically studied bya combination of microscopic examination,X-ray diffraction,electrolytic extraction,chemical analysis,hardness and magnetic measurements,density and dilatometricmethods,oxidation test,tensile tests at both room-and elevated-temperatures,creep-rupture test,etc.,and the main findings are presented as follow:(1)Stable austenitic region.(2)Solid state reactions:martensitic transformation,precipitation reactions,and formation of sigma phase.(3)Room-and elevated-temperatures properties,and their relation to the che-mical composition of the steels.(4)Strengthening effect of interstitial solid solution.(5)Effect of precipitation reaction on elevated-temperature strength.(6)Effect of V,W,Mo,Nb,B and Si.(7)Tentative recommendation for indus rial applications.

本文综合报导了作者对二百余种Cr-Mn-C-N实验钢所进行的有系统研究的主要结果:(1)稳定奥氏体区域.(2)重要相变——马氏体转变、σ相形成及沉淀作用.(3)室温及高温性能及其与钢中化学成分的关系.(4)间隙固溶体强化原理.(5)沉淀作用与高温强度的关系.(6)加入V,W,Mo,Nb,Si及B诸元素的影响.(7)工业上可试用的领域.

 
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