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endurance limit     
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  疲劳极限
     The endurance limit of the composite was about 750 MPa, which is much higher than about 600 MPa of the SCS6 fiber reinforced Ti matrix composites.
     研究结果表明,(Al2O3)f/Al复合材料的疲劳极限为750MPa,远高于SCS-6碳化硅纤维增强钛基复合材料。
短句来源
     Firstly, with the endurance limit of fatigue as para meters the expression of S-N curves is presented.
     首先给出以疲劳极限为参量的S N曲线的数学表达式。
短句来源
     The endurance limit of the high strength link plates of 1(1/2″)oil field roller chains manufactured in China using the above parameters has reached 31% of the rated breaking load of the roller chains.
     采用该参数试制的1(1/2)时高强度石油滚子链的疲劳极限已达到滚子链额定破断负荷的31%。
短句来源
     The B~+ implanted surface region consists of amorphous Ni-B phase, Ni_3B and Ni_4B_3 second phases, and damage structure. The corresponding measurements indicate that both surface micro-hardness and endurance limit of the specimens have increased after implantation. Compared with unimplanted specimens under the same fatigue condition, all implanted specimens show the smallest overall fatigue damage.
     结果表明,B~+注入多晶Ni后,表面区域形成一个不同组织结构的由Ni-B非晶、Ni_3B和Ni_4B_3第二相以及辐照损伤组成的多层次的注入层,提高了多晶Ni的表面硬度,并使其疲劳极限提高16%。
短句来源
     28% and 12% increases are foand in the endurance limit with carbon and boron implantation respectively.
     研究发现:注入C~+和B~+可分别使合金的疲劳极限提高28%和12%。
短句来源
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  持久极限
     Once the fatigue tests for a few specimens under two stress levels are done, we can determine the parameter (β+ 1) in the formula, then obtain the endurance limit of the material, σR .
     只要在两个应力水平下做少量试件的疲劳试验,就可确定公式中的参量(β+1),进而得出材料的持久极限σ_R。
短句来源
     A Safety and allowable high-strain formula for band Saw-blades is proposed, according to the endurance limit of alternating stress in unsymmetrical bending (or pulsating) circulation, and comparisons with those formula given in the Japanese Hand-Book of wood Industry(1982)and with high-strain upper limit curve in Kockums Group (sweden) were also observed.
     本文根据锯条不对称弯曲(或脉动)循环交变应力的持久极限,提出带锯条安全容许的高张紧力公式,并与日本木材工业手册(1982)的张紧力计算式和瑞典Kockums集团公司的高张紧力上限线作了对比。
短句来源
     Quick Determination of Endurance Limit by Damage Mechnics Principle
     利用损伤力学原理快速测定材料的持久极限
短句来源
     An approximate calculation formula of endurance limit stress of the drillstring at the condition of being eroded by drilling fluid was derived in combination with the basic characteristics of drillstring fatigue rupture and relevant experimental data.
     文章结合钻柱疲劳破坏的基本特征和有关实验数据 ,得到了钻柱在钻井液腐蚀条件下的持久极限应力近似计算公式。
短句来源
     Endurance limit with creep strain at high temperatures is also presented,which shows that the difference between endurance limit and tensile strength limit increases when temperature increases.
     提出考虑高温蠕变影响的钢丝持久极限强度计算公式,揭示了高温下钢丝持久强度与高温下极限强度的差值随温度升高而增大的规律。
短句来源
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  耐久极限
     The results of 2-roller contact fatigue test showed that the types of EP-additive used greatly affect the endurance limit of specimen material. Comparing the commercial N220 heavy-duty gear oil containing the modified chlorinated paraffin with that containing the complex additive, the former can improve significantly the contact fatigue strength of the carburized and quenched steel 20CrMnTi lubricated. The boundary lubrication behavior of modified chlorinated paraffin additive is discussed.
     双滚子接触疲劳试验结果表明.极压添加剂类型显著影响试件材料的耐久极限.采用含改性氧化石蜡添加剂的N220重负荷工业齿轮油润滑,与另一种含复合添加剂的N220重负荷工业齿轮油相比.显著提高20CrMnTi渗碳淬火钢的接触疲劳强度.探讨了改性氯化石蜡添加剂的边界润滑机理.
短句来源
  “endurance limit”译为未确定词的双语例句
     TEST ON ENDURANCE LIMIT OF 20g+15CrMo STEEL TUBE FRICTION WELDING JOINT
     20g+15CrMo钢管摩擦焊接头持久特性试验
短句来源
     In this paper, starting from the formula of the rupture life of the fatigue damage, the formula of the endurance limit of the material was determined, σR = 10lgA/(β+1), where .
     本文从疲劳损伤的缺断寿命公式出发,导出了确定材料持久极限的计算公式σ_R=10(1gA/β+1)式中。
短句来源
     Field surveying shows that the rotor's failure of the steam turbine is because of the rotor' S fatigue failure which is caused by the combined stress. Apply the fuzzy mathematics to get the membership function of the endurance limit. Calculating formula of the rotor' s fuzzy reliability was deduced out by using the theory of the fuzzy reliability.
     现场调查表明,汽轮机转子的损坏是由于转子与联轴器的联接部位在复合应力作用下的疲劳破坏所引起的,这里应用模糊数学原理推出了疲劳极限的隶属函数,根据模糊可靠性理论推导出了转子抗疲劳的模糊可靠度计算公式,建立了转子的模糊可靠性分析理论,并结合实例说明了转子模糊可靠度的计算方法。
短句来源
     A Study of Endurance Limit of Monkey's Head-Neck Region to Simulated Aerodynamic Loads
     模拟气动载荷对猴头颈部损伤的研究
短句来源
     Through metallographic test,mechanical property tests at room temperature and high temperature,carbide analysis,and high temperature endurance limit test,an estimation formula related to working temperature and stress of material is derived to determine the remaining lifetime of 12Cr1MoV steel after long term operation and the spheroidizing level reaches 4 of 4.5 degree.
     通过金相试验、室温机械性能试验、碳化物分析、高温机械性能试验、高温持久试验,找出了经过长期运行,球化级别达到4级和4.5级的12Cr1MoV钢管材,与使用温度和工作应力有关的剩余寿命的估算关系式。
短句来源
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  endurance limit
It is shown that a decrease in their endurance limit in chloride media is determined by their structure, rather than chemical composition and strength.
      
It is shown that treatment of VT6 alloy with high-frequency currents increases the endurance limit of the zone subjected to strengthening and makes the alloy more resistant to erosion.
      
Accumulation of fatigue damage of the material is noted to have a significant influence on reduction of the endurance limit.
      
When the endurance limit (401±91 s) of the voluntary contraction (VC-I) was reached, the triceps surae could be electrically stimulated to the same torque level for an additional 1 min in 10 of the 11 subjects.
      
At the endurance limit of VC-I, the superimposed twitch was larger than during the unfatigued MVC, while there was no significant difference between the twitch at the endurance limit of VC-II and MVC.
      
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