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      temperature
      相關語句
        溫度
          The Interface Element Method of Temperature Field And Thermal Deformation About Material Composite Casting-Roll And Its Study on Visual Simulation
          材料復合型鑄軋輥溫度場和熱變形的界面元方法及其仿真研究
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          NATURE OF ISOTHERMAL TRANSFORMATION BETWEEN ROOM TEMPERATURE AND MARTENSITE POINT IN A BALL-BEARING STEEL
          滾珠鋼在室溫到馬氏體點溫度范圍內等溫轉變的性質
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          THE TEMPERATURE COEFFICIENT OF SURFACE TENSION OF PURE COPPER
          純銅表面張力的溫度系數
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          TEMPERATURE DISTRIBUTION ROUND THE MOLTEN SLAG POOL IN THE PROCESS OF ELECTROSLAG REFINING
          電渣重熔過程中渣池內的溫度分布
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          Approach to the Measuring of Temperature in Grinding Zone
          磨削區溫度測量方法的研究
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        “temperature”譯為未確定詞的雙語例句
          Microstructure and Property of eutectic superalloy directionally solidified under high temperature gradient
          高梯度定向凝固共晶高溫合金的組織與性能
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          Theoretical Research on Mechanism of Magnetic Phase Transition for Room Temperature Magnetic Refrigeration GdSiGe Alloys and Their Nano-calculations
          室溫磁致冷GdSiGe系合金的磁相變機理的相關理論研究及納米化計算
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          Investigation on Low Temperature Sn-Zn Base Lead-Free Solder Alloys
          低熔點Sn-Zn系無鉛焊料研究
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          THE FRACTOGRAPHY OF A HOT-ROLLED 3% Si-Fe SHEET STEEL AND ITS DUCTILE-BRITTLE TRANSITION TEMPERATURE RANGE
          3%Si-Fe熱軋板脆變溫區及其斷口考察
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          Effect of Room Temperature Deformation on Carbonitriding of Steels 18CrMnTi and 18CrNiW
          室溫形變對18CrMnTi及18CrNiW鋼碳氮共滲的影響
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        temperature
      The assumption that the temperature anisotropies of the CMB are a realisation of a statistically isotropic Gaussian random field on the sphere is questioned.
            
      The reported method1 of their synthesis involves hydrogenation at high temperature and pressure.
            
      The formed intermediate showed a lower thermal transition temperature (Tm) by a magnitude of 10°C in relation to the native DNA.
            
      The nonlinear PDEs consist of a heat equation with the Joule heating as a source and a current conservation equation with temperature-dependent electrical conductivity.
            
      In the theoretical analyses, the second-order error estimates are obtained for electrical potential in discrete L2 and H1 norms, and for the temperature in L2 norm.
            
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      The approach to magentic saturation in the cases of iron, nickel, and a number of iron-cobalt alloys at various temperatures has been studied in the range of field from a few hundred to 6,000 oersteds. It has been found that for annealed and moderately cold-worked specimens the differential susceptibility can be represented fairly accurately by a formula of the form

      本工作依據微分磁化率的觀測,以研究鐵、鎳、和幾種鐵鈷合金在室溫和高溫下的“趨近飽和”現象。由實驗結果得知,在數百到6000奧斯特的磁場下 微分磁化率和磁場強度的關系可用下式表出: (I/H)_T=A/H~2+2B/H~3+C/H~(1/2)+D,式中I表磁化強度,H表磁場強度,T表溫度。在室溫附近,式中末兩項比前兩項小得多,所以末兩項的總值可以約略用一常數來代替;但在高溫下就不然了。如果將一曾經馴煉的試品逐步加以冷作 則系數A和B最初跟冷作程度作跳躍式的增加;但對于經過劇烈冷作的試品上式就不適用。在馴煉狀態下,A和B跟溫度的上升而減小;到消失時溫度還相當低于居里點。因本實驗中所得數據的準確度不夠所以不能依據它們來確定D的值;但如果將D略去而計算系數C的值,則可以確定到九成。C的數量級和它跟溫度變化的情形大致是和Holstein和Primakoff的理論相符的 系數B和“磁晶各向異性”系數K的平方成正比;但用B的實驗值和B的理論式比較而算得的K_1則和從單晶體觀測所得的K_1只有數量級的符合。

      Impact tests have been carried out on nodular cast iron in -the cast and forged conditions from -85℃ to 1070℃. The results indicate that nodular cast iron of predominantly ferritic matrix possesses two brittle temperature ranges (below 20℃ and between 550 and 700℃), and one comparatively more ductile range (between 850℃ and 1050℃).

      本文描述高溫沖擊實驗的技術,以及由-85℃至1070℃的鑄態和鍛造后的球墨鑄鐵的沖擊性能。研究結果找到了基體主要為鐵素體的球墨鑄鐵的兩個變脆溫度范圍(-20℃以下和550℃至700℃之間)和一個比較具有韌性的溫度范圍(850℃與1050℃之間)。在這些溫度范圍內,曾考查試樣的斷口情況和斷裂時的彎曲角度,并與其基體組織的變化相聯系,進行討論。最后,本文指出研究結果在球墨鑄鐵的應用上所起的作用,以及在球墨鑄鐵熱加工時對于選擇熱加工溫度的意義。

      Creep under very small torsional stress has been investigated for 99.95% polycrystalline iron in the temperature range of 350°-525℃. The general features of the creep curves obtained are essentially the same as those previously reported for 99.991% aluminum. The creep is shown to be consisted of two parts, one occurring at lower temperatures or shorter times and the other at higher temperatures or longer times. The first part of the creep is limited in extent and is associated with the viscous...

      Creep under very small torsional stress has been investigated for 99.95% polycrystalline iron in the temperature range of 350°-525℃. The general features of the creep curves obtained are essentially the same as those previously reported for 99.991% aluminum. The creep is shown to be consisted of two parts, one occurring at lower temperatures or shorter times and the other at higher temperatures or longer times. The first part of the creep is limited in extent and is associated with the viscous behavior of grain boundaries. The activation energy for this grain-boundary creep is 78,000 ± 4,000 calories per mole according to the present creep and stress relaxation measurements. This value is close to the activation energy for self-diffusion of iron, a correlation which indicates that, in so far as to the mechanism of atomic migration is concerned, grain boundaries may not be very different from the interior of the grains.

      用99.95%的多晶純鐵作了從350°-525℃的扭轉微蠕變及應力弛豫試驗,所得結果的概貌與以前用多晶純鋁所得的基本上相同。從蠕變曲線上可以看出這蠕變是由兩部分組成的:第一部分是在較低溫度或較短時間內發生的,第二部分是在較高溫度或較長時間內發生的。第一部分的蠕變是有限的,是由于晶粒間界的粘滯性滑移所引起。根據微蠕變及應力弛豫測量的結果,這一部分蠕變所包含的激活能是78,000±4,000卡/克分子。這個激活能(晶粒間界滑移激活能)的數值與純鐵自擴散的激活能很相近,表示晶粒間界與晶粒內部對于原子遷移的基本過程而言并沒有顯著的差異。 加碳于純鐵中對于這兩部分的蠕變都有顯著的影響。最值得注意的結果是含碳量少到0.0004%時已經使晶粒間界的粘滯性滑移受到顯著的阻礙。這些發現在控制金屬高溫蠕變的問題上指出一個一般性的原則,對于以前所提出來的晶粒間界空穴模型也提供了一些新的實驗證據。 根據加碳的實驗結果,對于第二部分高溫蠕變的機構也提出了一個初步的看法,這蠕變所包括的基本過程可能是晶粒內部的空穴中的原子重新排列。

       
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