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在应力
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  on stress
     Basing on stress analysis and with reference to stress limit level of horizontal vessel required in GB150 "Steel pressure vessel",this article shows stress calculation methods for the horizontal vessel supported by vertical bracket.
     在应力分析的基础上,参照GB150《钢制压力容器》中卧式容器的应力限制准则,给出了纵向支座卧式容器的强度计算方法。
短句来源
     On stress state,the linear transformation is taken as a mathematical model. By the theory of algebra, a new formula of shear stress in an oblique section is obtained,and its application to stress analysis is pointed out.
     以线性变换作为应力状态的一个数学模型,利用代数的理论,得到了斜截面上剪应力的一个新公式,同时指出了它在应力分析中的应用。
短句来源
     The effect of geomagnetic field on stress induced magnetic field abnormalities was studied by measuring the magnetic fields on the surfaces of two specimens produced by tightly fitting round pegs on rings with and without the geomagnetic field with a testing liftoff of 10 millimeters.
     为了研究地磁场在应力磁畸变产生过程中的作用,以10mm提离值测量了两个过盈装配在一起的圆环和圆销对比试样(对比试样分别在屏蔽地磁场和地磁环境中制成)表面的磁场。
短句来源
     The aim is to understand the influence of microstructure on stress corrosion cracking (SCO behavior of Zircaloys. The results show that, at crack initiation stage, the microstructure of material such as grain size, texture, second phase particles, etc. , seriously influence the susceptibility to SCC, it dose not matter whether the iodine concentration is high or low; the rate of crack growth increase with test temperature rising.
     试验结果表明,在应力腐蚀过程中的初始阶段,由于晶间腐蚀行为与材料微观组织有关,晶粒度对材料应力腐蚀行为(对不同碘浓度)均很敏感; 在相同试验温度下,碘浓度增加使裂纹生长加快;
短句来源
     Based on stress measurement, optimum design of the frame is then presented.
     在应力测试的基础上,进行了车架的优化设计。
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  at stress
     The relationship between the fatigue limit of 20Cr, 40Cr, 30CrMo, GC4 and 300M steels at stress ratio -1 and/or 0.05 with their tensile property was studied and some practical laws easily to be used in engineering have been established.
     研究了 2 0Cr、40Cr、30CrMo、GC4、30 0M等钢在应力比r =-1或r =0 .0 5条件下 ,金属内部疲劳极限与静强度的关系 ,建立了便于工程应用的实用性规律。
短句来源
     Both of causes above mentioned,the embrittlement state of the valve-body and the presence of hydrogen in the valve-body, brought about a hydrogen aggregation at stress raisers and the hydrogen-induced delaved failure ultimatelv occurred in the valve-body when the valve-body worked.
     阀体又因镀锌,未能将引入的氢去除,致使阀体工作时在应力集中位置造成氢的聚集而产生滞后破坏型断裂。
短句来源
     Based on the destruction of support by rockbolt and shotcrete in crushed surrounding rock mad often happens at stress adjusting period, expounds the forms of currounding rock destruction and effect factros, and provides the important points of srushed surrounding rock road support by rockbolt and shotcrete.
     根据玻碎岩体巷道锚喷支护的破坏多发生在应力调整期的特点,论述了围岩破坏形式及影响因素,提出了玻碎围岩巷道锚喷支护的要点。
短句来源
  “在应力”译为未确定词的双语例句
     The important character of non-magnetic high manganese ZG25Mn18Cr4 alloy is rapid work-hardening under external stress.
     在应力作用下快速加工硬化是高锰无磁钢ZG25Mn18Cr4的一个重要特征.
短句来源
     Fatigue strengths of the three die cast magnesium alloys are 96.7 MPa,116.3 MPa and 105.5 MPa respectively under stress ratio R=0.1 and cycles N=10~7 conditions using up-and-down method calculation. The fatigue strengths of the alloys are about 46% of their tensile strengths.
     利用升降法计算出3种成分合金在应力比R=0.1、循环基数为107下的条件疲劳极限分别为96.7 MPa1、16.3 MPa和105.5 MPa,相当于其抗拉强度的46%左右;
短句来源
     The high cycle fatigue properties of AZ91D die cast magnesium alloy were investigated under the condition of stress ratio R=0.1.Fatigue strength of AZ91D magnesium alloy at ambient temperature is about 44% of tensile strength.
     研究了压铸镁合金AZ91D在应力比R=0.1条件下的高周疲劳性能。 结果表明:AZ91D压铸镁合金的室温条件疲劳强度在应力比R=0.1时大约相当于其抗拉强度的44%;
短句来源
     The property of the yield curves of the stable material on the stress π plane
     稳定材料在应力π平面上屈服曲线的特性
短句来源
     A study on high cycle fatigue properties of gravity-casting magnesium alloy AZ91 at fatigue ratio of 0.1 was investigated.
     研究了重力铸造镁合金AZ91在应力比R=0.1条件下的高周疲劳性能。
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  on stress
Effect of hydrogen on stress corrosion cracking of copper
      
Nitric oxide proved to have a considerable protective effect on stress-induced disorders in Krushinsky-Molodkina rats as demonstrated using NO-synthase inhibitors and NO monitoring by electron spin resonance under different experimental conditions.
      
The review considers recent data on stress granules, which are dense RNP-containing cytoplasmic bodies that arise under stress conditions, e.g., in heat shock, UV irradiation, energy depletion, and oxidative stress.
      
Influence on Stress on Postnatal Growth of Body and Adrenal Gland Weight in Rats
      
The effects of mutations that change the level of biogenic amines (octopamine and dopamine) on stress-reactivity and fitness of Drosophila adults are considered.
      
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  at stress
simplex may be a consequence the role of trehalose as protective compound at stress condition.
      
The data obtained indicate that at stress responses in frogs, mesotocin can affect the thyroid gland via adenopituitary rather than via general circulation, i.e., by an indirect way.
      
An injection at stress followed by a 2nd injection at rest performed 24 h later, or the inverse, has been proposed.
      
On completion of the rest study, the patient received 25-30 mCi 99mTc-MIBI at stress and images were again obtained 30 to 60 min later.
      
Injection of a low dose of 99mTc-MIBI at rest followed 1 h later by a higher dose at stress is a valuable and useful alternative for myocardial perfusion imaging with 99mTc-MIBI in clinical practice.
      
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It is well-known that the stress-induced rotation of the magnetic domains in nickel gives rise to an internal friction peak (when internal friction is plotted as a function of temperature of measurement). An internal friction peak associated with the presence of carbon in nickel was recently observed in our laboratory. In this paper are described further experiments which demonstrate conclusively that this new internal friction peak is not connected with ferromagnetism of nickel but depends upon the amount of...

It is well-known that the stress-induced rotation of the magnetic domains in nickel gives rise to an internal friction peak (when internal friction is plotted as a function of temperature of measurement). An internal friction peak associated with the presence of carbon in nickel was recently observed in our laboratory. In this paper are described further experiments which demonstrate conclusively that this new internal friction peak is not connected with ferromagnetism of nickel but depends upon the amount of carbon in solid solution in nickel. More accurate determinations of the activation energy associated with this internal friction peak show that this activation energy is indeed very close to the activation energy for the diffusion of carbon in nickel. These experiments thus show that the new internal friction peak is associated with the stress-induced micro-diffusion of carbon in nickel.

镍中磁畴在应力作用下的转动可以引起一个内耗峰(当内耗表示为温度的函数时),是众所周知的现象。最近在我们的实验室中发现镍中含碳可以引起内耗峰。本文叙述进一步的实验,确切证明这个新内耗峰与镍的磁性无关,而与镍中固溶体所含的溶解碳量有关。关于激活能的较精确测量指出:与这个内耗峰相联系的激活能确与碳在镍中扩散的激活能很相近。这些实验说明这个新内耗峰是由于碳在镍中的应力感生微扩散而起的。 简单地讨论了这个内耗峰的机构,认为可能与镍的晶体点阵中的空穴有关。

Internal friction peaks associated with the stress-induced diffusion of carbon were observed in four kinds of f.c.c. manganese steel which contain Mn 18.5%, Mn 25.4%, Mn 36.0% and Mn 9.5%, Ni 8%, Cr 3% respectively. The optimum internal friction occurs at a temperature around 250℃ when the frequency of vibration is about 2 cycles per second. Experimental results showed that the height of internal friction peak is linear with the carbon content in solid solution.

在三种面心立方系的铁锰合金(Mn18.5%,25.4%,36.0%)和铁锰镍铬合金(Mn9.5%,Ni8%,Cr3%)中观察到因含碳而引起的内耗峰,当振动频率约为2周/秒时,内耗峰出现在250℃左右。实验结果指出内耗峰高度与固溶体中的含碳量成直线关系。 提出了一个产生内耗峰的初步模型。假定碳在面心立方系晶体点阵中占据八面体的间隙位置,点阵中的异类原子(合金元素的原子或空穴)与这碳原子构成一个在各方向引起不同畸变的原子对,由于这个原子对在应力作用下的转动而产生内耗。由初步模型所推导出的式子可以解释内耗峰高度与固溶体中的含碳量成直线关系。根据粗略推算所得的内耗峰高度值与实验值相近。 关于晶体中空穴浓度的推算指出,对于碳在面心立方系合金钢中微扩散所引起的内耗峰而言,空穴的贡献少于合金元素的贡献的十分之一。

In γ-iron (containing 1.7% of Mn) an internal friction peak was observed around 240℃with a frequency of vibration of about 2 cycles per second. The height of the peak was found to increase with an increase of the carbon content and was found to decrease when the specimen was annealed at an elevated temperature. The activation energy associated with this peak was found to be 34,000±2,000 calories per

在含锰1.7%的γ-铁中观察到因含碳而引起的内耗峰。当振动频率约为2周/秒时,内耗峰出现在240℃左右。这个内耗峰由于含碳量的增加而升高,由于在较高温度保温而降低。根据内耗测量所得的激活能是34,000±2000卡/克分子,与碳在γ-铁中的激活能(宏观扩散实验的数据)相合,由此可知所观测的内耗峰是由于碳在γ-铁(含锰1.7%)中的应力感生微扩散所引起来的。 根据内耗测量的数据求出了碳在200—250℃的温度范围内在γ-铁中扩散的扩散系数。在logD—l/T坐标上,这些数据与宏观扩散实验所测得的在1000—1200℃的扩散系数坐落在一条直线上。 所观测的内耗峰高度似乎与含碳量的二次方成正比,这表示在应力感生扩散过程中直接参加元跳动的乃是两个碳原子。由此可以提出一个产生内耗峰的初步模型:由于点阵中有空穴存在,两个碳原子很容易构成一个在各方向引起不同畸变的原子对,由于这个原子对在应力作用下的转动而产生内耗。

 
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