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strength     
相关语句
  强度
    STATISTICAL APPROACH FOE TENSILE STRENGTH OF UNIAXIAL FIBROUS COMPOSITES
    用概率论方法分析纤维复合材料的轴向拉伸强度
短句来源
    Analysis of GRP Compressive Strength
    璃玻钢压缩强度的分析
短句来源
    STRENGTH ANALYSIS OF LARGE FLANGED OPENINGS ON SPHERICAL SHELLS
    球底翻边大开孔强度分析
短句来源
    EFFECT OF CARBON CONTENTS ON HIGH TEMPERATURE STRENGTH OF TiC-19%Mo_2C-24%Ni CERMETS
    碳含量对TiC-Mo_2C-Ni合金高温强度的影响
短句来源
    THE STRUCTURAL ELEMENTS MODEL FOR THE STRENGTH OF SOLIDS
    固体强度的构元论模型
短句来源
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  强力
    Through the design of the different resin injection technology the author discovers that the usage of assisted vacuum degree during RTM injection process can increase fracture strength from 1.464×104 N to 1.488×104 N and 1.503×104 N,and decrease the voids ratio cross section from 2.65% to 1.26% and 0.146%.
    通过设计不同的辅助真空压力树脂注入工艺 ,发现在 RTM制造过程中 ,有效地利用真空技术 ,可使产品的断裂强力分别由 1 .464× 1 0 4 N增加到 1 .488× 1 0 4 N和 1 .50 3× 1 0 4 N,间隙截面比例分别由 2 .65%降低到1 .2 6%和 0 .1 46% .
短句来源
    3) Hydration silica nano -particles was energetic catalyst in resin treatment, It had been found that the treatment temperature of the resin finishing was lower, the tensile strength of the finished fabrics was not.
    3.纳米水合二氧化硅也是树脂抗皱整理的有效催化剂,催化效率高、焙烘温度低、可以提高织物强力;
短句来源
    We introduce the yarn strength utilizing ratio to analyze the difference because of the density and warp/weft direction.
    另外衬经纱的衬入方式对撕裂性能也有一定的影响,文中还引入撕裂时纱线的强力利用率来针对基材不同密度,经纬向差异等进行深入分析。
短句来源
    Because of the differences between longitudinal direction and transversal direction in nonwovens, the strength in the longitudinal direction exceeds the strength in the transversal direction.
    加工的纤维网由于存在纵横向的强力差异,导致最终复合材料板的纵横向强力差异,纵向力学性能远远高于横向,采用正交铺层的方式可以显著改善纵横向的强力
短句来源
    The laminated composite are manufactured and analyzed, the results show longitudinal tensile strength in laminated composite increases by 40% according to that in transversal direction, and decreases 46% according to that in longitudinal direction, also flexural strength in laminated composite increases by 50% according to that in transversal direction, and decreases 10% according to that in longitudinal direction.
    层合板复合材料相对于单层板复合材料纵向来说拉伸强度降低了46%,弯曲强度降低了10%,而相对于横向来说拉伸强度增加了40%,弯曲强度增加50%。 盖板梳理机加工的复合材料强力高于罗拉梳理机加工的。
短句来源
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  抗压强度
    Compressive Strength and Microstructure of Si-Ni-B Bond PCD Produced at Various Temperature and Pressure
    不同压力温度条件下聚合的Si-Ni-B中介聚晶金刚石(PCD)抗压强度及组织特征研究
短句来源
    Moreover, the relative density of the material is 98.3% , compressive strength is 2 044 MPa and plasticity strain is 7.26 %. Compared with Cr-NbCr2 composite material prepared by arc-melting and simple Laves phase NbCr2, its plasticity increases greatly, the effect of MA + hot pressing compound process of secondary phase toughening has been fully realized.
    结果表明,MA+热压获得的Cr-NbCr2复合材料组织均匀,晶粒尺寸达到微/纳米级,致密度达到98.3%,抗压强度为2044MPa,塑性应变为7.26%,比熔铸法制备的Cr-NbCr2复合材料及单一Laves相(NbCr2)的塑性都有很大提高,充分体现了MA+热压复合工艺对第二相增韧的效果。
短句来源
    The compressive strength of the G/C is similar to, and the flexural strength is lower than, those of carbon felt/pyrocarbon composites.
    G/C复合材料的力学性能比纯石墨高一倍,抗压强度与炭毡增强C/C复合材料相当,弯曲强度比炭毡增强C/C复合材料略低。
短句来源
    A light chemical reaction in the SijN4/Al, Si3N4/Mg interface made the infiltration to be succeeded. The properties of composites,such as compressive strength and wear-resistance,excel greatly the matrix.
    探讨了这种复合材料抗压强度和摩擦磨损性能特点。 指出Si3N4/Al复合材料,Si3N4/Mg复合材料抗磨擦性能明显优于基体,抗拉强度大大高于基体。
    compression strength of new type building putty with 0.08% NS enhanced up to 60 % , tensile-adhesive strength raised up to 21 % when adding 0.10 % NS in the putty and shearing strength of inorganic adhesive with 2.23%NS increased 2.3MPa.
    把 0.08%NS掺入新型建筑腻子中抗压强度提高60%,而当掺入0.10%NS时拉伸粘结强度提高21%; 在无机胶粘剂中掺入2.23%NS剪切强度增加2.3 MPa。
更多       
  抗拉强度
    Effect of the Interfacial Reaction on the Tensile Strength of C/Al Composites
    碳/铝复合材料界面反应对抗拉强度的影响
短句来源
    Size Effect of Bending Strength for Brittle Materials and Tensile-Bending Strength Relation
    脆性材料弯曲强度尺寸效应及抗拉强度
短句来源
    THE COLD PLASMA MODIFICATION SURFACE OF FIBER EFFECT ON THE TENSILE STRENGTH OF FIBER
    表面冷等离子体改性对纤维抗拉强度的影响
短句来源
    Influence of C, Ni and Mo on Tensile Strength of Casting Fe-Cr-Ni Alloy at High Temperature
    碳、镍、钼对铸造Fe-Cr-Ni合金高温抗拉强度的影响
短句来源
    When volume percentage of C/CF perform bars made of 1k and 3k carbon fiber is 25% and 44.7%,the tensile strength of C/CF/Cu composite material is higher and reaches up to 595 MPa and 587 MPa,respectively,which is equivalent to more than three times of that of pure copper cast with 28.5 MPa squeeze pressure.
    当凝固成型压力为28.5MPa时,1k碳纤维丝的C/CF先驱丝体积分数为25%和3k碳纤维丝的C/CF先驱丝体积分数为44.7%的复合材料的抗拉强度达到较高值,分别为595MPa和587MPa,均为纯铜抗拉强度的3倍以上。
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      strength
    The influence of methanol content, pH value, ion types, and ionic strength of mobile phase are studied in detail.
          
    It was indicated that the notched impact strength and elongation at break of the polymers increased with the increase of PDMS content.
          
    It implies that this is an effective means to reduce the dielectric constant of PI, but it also causes the decrease of tensile strength and the rise of water absorption.
          
    The compressive strength of the composite is higher than that of the PLA scaffold.
          
    pH, proteins, amino acids, ionic strength and Na2S, on the dissolution of cinnabar.
          
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    Supersonic speed aircraft and guided aircraft missiles are subjected to rapid aerodynamic heating and rapid loading during their flight. For taking full advantage of the strength of structural materials in design, it is necessary to study the mechanical characteristics of metallic structural materials under rapid loading and heating. This paper describes a short-time high-temperature tensile testing machine, which is capable of constant-rate loading up to 85 kg/sec and heating at a rate up to 80℃/sec,...

    Supersonic speed aircraft and guided aircraft missiles are subjected to rapid aerodynamic heating and rapid loading during their flight. For taking full advantage of the strength of structural materials in design, it is necessary to study the mechanical characteristics of metallic structural materials under rapid loading and heating. This paper describes a short-time high-temperature tensile testing machine, which is capable of constant-rate loading up to 85 kg/sec and heating at a rate up to 80℃/sec, the temperature gradient within the gage length for a distance of 50 mm being less than 5℃. All the heating, temperature-controlling and stress-strain measuring processes are done automatically. Experiments such as rapid tension under high temperature, rapid heating under constant loading and short-time creep can be carried out on this tester. Specimens of low carbon steel, R1T and 12F2A have been tested on it. Diagrams and tables have been included here and results from these tests have been preliminarily discussed.

    高速飞机及飞航导弹在飞行过程中受到气动力的快速加热和快速加载.为了最充分地利用结构材料强度进行合理设计,必须研究金属结构材料在快速加载、快速加热下的力学性能.本文叙述了一种短时高温拉伸试验设备;这设备能以小于85 kg/s的速率对试件进行恒速加载,以小于80℃/s的速率进行快速升温;试件50mm标距内温度梯度小于5℃;整个加热控温过程和应力应变测量记录过程均系自动进行.在此设备上可进行高温快速拉伸和短时蠕变等实验,并已进行了低碳钢,等材料的短时拉伸、短时蠕变、恒裁等加热率的实验.文内列有图表,并对结果进行了初步讨论.

    The theory of tensile strength of composite materials are considered In eluded are analyses of tensile strength of fibers, fiber boundles and the different failure machanisms of composites.Most of the reinforcing fibers presently in use are known fo be brittle with a wide scatter in their tensile strength values, and a statistical approach is then called for the discription of strength characteristics of fiber, fiber bundles and conposite materials. In this paper, the probability desity...

    The theory of tensile strength of composite materials are considered In eluded are analyses of tensile strength of fibers, fiber boundles and the different failure machanisms of composites.Most of the reinforcing fibers presently in use are known fo be brittle with a wide scatter in their tensile strength values, and a statistical approach is then called for the discription of strength characteristics of fiber, fiber bundles and conposite materials. In this paper, the probability desity funcfion to present the strength distribution of a single fiber is of the weibull form and that for large bundles the Gaussian type. The above information is ultilized to form theoretical models of composite strength. Both the cumulative weaking model with or without stress concentration are considered.Most recent works are summerized. Experimental data are compared to the analytical results and review be given in this study.

    本文介绍复合材料的轴向拉伸强度的理论。涉及纤维、纤维束的强度和复合体的拉伸破坏型式分析。 常用纤维加劲材料,大都是脆性纤维。脆性纤维强度变化幅度很大,为此纤维复合材料,须用概率论方法来分析。本文按纤维强度分布为Weibull型,纤维束强度分布为Caussian型,而后采用环链模型理论,就考虑和不考虑应力集中来分析复合体强度。 本文中介绍了新近的科研成果,有理论与实验的验证材料和评论。

    The strengthening process of hematite pellets made from iron ore concentrateof Kunming Iron and Steel Company has been examined by SEM, X-ray diffrac-tion, etc. to ascertain the strengthening mechanism when they were fired undertemperatures between 1000 to 1350℃. The hematite crystallites began to growinto trigonal platelets and to cross-connect each other at temperature up to 1000℃.Until 1200℃, the cross-connexion was further strengthened into solid framework.Thus, it seems to be easily clarified why a rather...

    The strengthening process of hematite pellets made from iron ore concentrateof Kunming Iron and Steel Company has been examined by SEM, X-ray diffrac-tion, etc. to ascertain the strengthening mechanism when they were fired undertemperatures between 1000 to 1350℃. The hematite crystallites began to growinto trigonal platelets and to cross-connect each other at temperature up to 1000℃.Until 1200℃, the cross-connexion was further strengthened into solid framework.Thus, it seems to be easily clarified why a rather firm strength of pellets isdisplayed earlier under lower firing temperatures. Perhaps, neither molten slagformed over the surface of hematite crystals with vein and impurities nor a fewof magnetite crystallized out of melt will play a dominante role in the strengtheningprocess of this hematite pellets.

    用扫描电子显微镜等手段观察分析了昆钢赤铁矿球团在1000—1350℃的固结过程.通过断口和磨片的比较,配合以岩相鉴定、电子探针微区成分分析和X射线衍射结构分析,提出了“Fe_2O_3的板状生长和交连”的固结机理.

     
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