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fine
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  细小
    A Sip/ZA27 composite with fine Sip distributed uniformly can be obtained under an appropriate pouring temperature(750 ℃)and a silicon content(10vol%).
    在适宜的浇注温度(750℃)和硅含量(体积分数10%)下,可得到初生硅颗粒形状规则、尺寸细小、分布均匀的Sip/ZA27。
短句来源
    The results indicate that Cu-Al2O3 composites are prepared successfully by the simplified technique,a mass of fine Al2O3 particles are dispersed in the copper base,the size of Al2O3 particles is about 10~20 nm in diameter,and the spatial distance between particles is about 25~60 nm.
    结果表明:该简化工艺成功制备了Cu-Al2O3复合材料,在铜基体上弥散分布着细小粒状Al2O3颗粒,其粒径约为5~20 nm,颗粒间距约为25~60 nm;
短句来源
    The lower diffraction peak height and wider FWHW suggest that fine TiC particles exist in the deposited films under 1/2 flow rate ratio of the H2 and C2H2 gas in chamber.
    在H2和C2H2气体流量比为1/2时,膜层中的TiC相各衍射峰峰高较低,半高宽加大,这表明膜层中TiC相的晶粒(颗粒)细小
    The results from XRD analysis, optical microscope observation, hardness measurement and thermal cycling test shows that the composites fabricated by this method consists of Al2O3 phase and Ni(Cr, Al) solid solution. The Al2O3 grains formed by the in-situ reaction between NiO and Ni were fine and dispersive.
    X射线物相分析,金相观察和热循环冲击试验结果表明用该方法制备的复合材料由 Al2O3陶瓷相和(Ni,Cr,Al)固溶体组成,而Al2O3颗粒是由NiO与Al原位反应形成,尺寸细小,弥散分布。
    To obtain the ultra fine ATC ceramic with fine, uniform grain and high mechanical properties and solve the problem of brittle of ceramic, the technique of electroless cobalt plating under low temperature and ultrasonic was used to get a cobalt deposition on nano/micro Al2O3, TiC ceramic.
    为了得到品粒细小、均匀,力学性能优异的Co-Al_2O_3-TiC(ATC)复合陶瓷,解决陶瓷的脆性问题,本文在化学镀钴制备高性能ATC复合陶瓷的基础上,采用超声波化学镀方法,以提高钴在陶瓷粉末以及Al_2O_3与TiC陶瓷颗粒之间的分布均匀性,以期进一步提高ATC陶瓷的力学性能。
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  细小的
    It is shown that the volume fractions of developed dentritic β phase in composite W and fine equiaxed β-phase grain in the composite M were determined to be about 30% and 20% respectively.
    W中的β相呈发达的树枝状,体积分数约为30%; M中的β相为细小的等轴晶,体积分数约为20%。
短句来源
    The XRD curves and microstructure of Al80Ni10Zr3Cu5Y2 and Al80Ni10Zr7Cu1Y2 amorphous alloys after annealing have been observed, the fine average crystals size have been observed in the two kinds of amorphous alloys after annealing under 598K and 673K. The distribution of crystal is even.
    通过对Al_(80)Ni_(10)Zr_3Cu_5Y_2和Al_(80)Ni_(10)Zr_7Cu_1Y_2非晶合金退火后的X射线衍射曲线和微观结构的观察,可以看到两种非晶合金分别在598K和673K下退火后能得到细小的均匀的晶粒尺寸。
短句来源
    TiC at grain boundaries makes the alloy brittle and the large block TiC turns into fine Cr23C6 particles with mosaic structulc after long term exposure therefore the ductility of grain boundaries is improved.
    断口分析确定合金长期时效后塑性提高的原因是晶界上的大块脆性TiC转变成细小的、具有嵌镶结构的,包有Υ′膜的Cr_(23)C_6,提高了塑性。
短句来源
    In order to generate fine equiaxed grains in superpure aluminium(99.99)titanium additions must approach the peritectic composition of 0.15% Ti.
    为在高纯铝(99.99%)中获得细小的等轴晶组织,铁的加入量必须达到包晶反应的最低成分0.15%Ti。
短句来源
    Iron was dissolved rapidly into the molten aluminium at lower temperature under ultrasonic vibration, through which Al-Fe alloy with homogeneous and fine rod-like FeAl_3 phase in microscopicstructure was prepared.
    采用超声振动凝固法使铁在较低的温度下快速溶入铝液,制得的Al-Fe合金显微组织中具有均匀而细小的短棒状FeAl_3相。
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  “fine”译为未确定词的双语例句
    CONDUCTION CHARACTERISTICS OF Na-β(β")-Al_2O_3 CONTAINING FINE CARBON PARTICLES
    含碳Na-β(β")-Al_2O_3的导电性能
短句来源
    SUPER FINE GOLD WIRE FOR ELECTRONIC INDUSTRY
    电子工业用的超细金丝
短句来源
    (Fe,Co,Ni)B Systems Ultra Fine Amorphous Powders BY Chemical Reduction
    化学法制备(Fe,Co,Ni)B非晶超细粉
短句来源
    A STUDY OF THE TECHNIQUE FOR FINE GRAIN STRUCTURE FORGINGS OF ALLOY GH169
    GH169合金细晶锻造工艺研究
短句来源
    Surface State of Fine Si3N4 Powders Made from Thermal Decomposition of SilicOn-Imide
    由氨解法制备的Si_3N_4粉末的表面元素状态
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  fine
A Time Domain Characterization of the Fine Local Regularity of Functions
      
We also show that, if ξ f(ξ) satisfies Daubechies' criterion, then L f(L)δ generates a frame for any sufficiently fine latticesubgroup of G.
      
Moreover, we show that the ratio of the frame bounds approaches 1 nearly quadratically as the dilation parameter approaches 1, so that the frame quickly becomes nearly tight (again assuming that the lattice subgroup is sufficiently fine).
      
In particular, if the dilation parameter is 21/3, and the lattice subgroup is sufficiently fine, then the "Mexican hat" wavelet, Le-L/2δ, generates a wavelet frame, for which the ratio of the optimal frame bounds is 1.0000 to four significant digits.
      
This algorithm involves solving one nonlinear system on a coarse grid and one linear problem on a fine grid.
      
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This work gives an introductory step to the experiment of the technology of MIG welding of molybdenum and the effects of the alloying elements upon the structures and the properties of the molybdenum welds welded in ambient atmosphere. The experiment shows that with properly designed structure of torch and argon-protected high temperature zone and the back of welds under appropriatly selected welding conditions, the MIG welding of molybdenum can be done in ambient atmosphere and is cable of obtaining a fine...

This work gives an introductory step to the experiment of the technology of MIG welding of molybdenum and the effects of the alloying elements upon the structures and the properties of the molybdenum welds welded in ambient atmosphere. The experiment shows that with properly designed structure of torch and argon-protected high temperature zone and the back of welds under appropriatly selected welding conditions, the MIG welding of molybdenum can be done in ambient atmosphere and is cable of obtaining a fine shape and silvery surface for the seams. The technology provided a simple and practicable means for welding: thicker molybdenum plates and pipes in work site.For MIG welding of molybdenum it is advantageous for the refining of the seam crystals and the raising of the plasticity of the seam, if a certain amount of borax and carbon is added into the seams.

本文介绍在大气下进行钼熔化极氩弧焊的工艺及合金元素对钼焊缝组织和性能影响的实验工作,试验表明,只要焊炬结构设计合理,采用焊缝高温区及焊缝背面氩气保护,选用适当的焊接规范,在大气下进行熔化极氩弧焊焊钼,能够获得成型美观、表面银白光亮的焊缝。这为在工程现场焊接较厚的钼板和钼管提供了一种简单可行的方法。 进行钼熔化极氩弧焊时,如在焊缝中加入适量的硼和碳,对细化焊缝晶粒和提高焊缝的塑性均有一定的好处。

The article deals with the method of pack boriding by borax.The characteristics of this process are as follows:It results in an even borided layer with high reusability,the boriding agentbeing able to be reused more than ten times incessantly;the borided layershave great hardness(H_(v1008) 1200—1600),high resistance to wear as wellas high resistance to corrosion in the brine of saturated ammonia,in hydroch-loric acid and sulpburic acid:the technology aud equipment needed,simple andpracticable,can be applied...

The article deals with the method of pack boriding by borax.The characteristics of this process are as follows:It results in an even borided layer with high reusability,the boriding agentbeing able to be reused more than ten times incessantly;the borided layershave great hardness(H_(v1008) 1200—1600),high resistance to wear as wellas high resistance to corrosion in the brine of saturated ammonia,in hydroch-loric acid and sulpburic acid:the technology aud equipment needed,simple andpracticable,can be applied to parts small in diameter and with deep doreholes,thus-reducing the production cost.It has been proved in our production that the lifetime of the betided“steel.bell”from a fine count Yarn loom and of valve spindles used in thebrine of saturated ammonia is more than three times as long as those withoutboronization.The article also expounds the thermodynamics in relation to the chemicalreactions of the boriding agent.An intensive investigation has been carried outon the choice of boriding agents,on the technology of boronization and on thestructure and Properties of the borided layers.

本文介绍利用硼砂进行固体渗硼的方法。具有渗层均匀,重复性好,渗剂可翻新连续使用十次以上,渗硼层具有高的硬度(H_(v100g)1200—1600)和高的耐磨性,在饱和氨盐水、盐酸、硫酸中具有较好的抗蚀性能;工艺、设备简单易行,成本低,对小直径、深孔零件也适用等特点。生产实践证明,经渗硼的精纺机“钢令”、饱和氨盐水中使用的阀杆,使用寿命提高三倍以上。文中阐述了渗硼剂化学反应的热力学分析。对渗硼剂的选择,渗硼工艺,渗硼层的组织和性能等进行了研究。

The phase diagram, phase transition, and formation, stability and crystallization kinetics of amorphous state in the system LiIO3-NaIO3 have been investigated. The pesudo-binary system LiIO3-NaIO3 is a eutectic one, its eutectic reaction occurs at 325℃ and the composition at eutectic point is 50 m/o LiI03. As the melt is quenched from a temperature 150℃ higher than the melting point, an amorphous state of iodate salts is obtained for the first time. The apparent transition temperature decreases when the amorphous...

The phase diagram, phase transition, and formation, stability and crystallization kinetics of amorphous state in the system LiIO3-NaIO3 have been investigated. The pesudo-binary system LiIO3-NaIO3 is a eutectic one, its eutectic reaction occurs at 325℃ and the composition at eutectic point is 50 m/o LiI03. As the melt is quenched from a temperature 150℃ higher than the melting point, an amorphous state of iodate salts is obtained for the first time. The apparent transition temperature decreases when the amorphous state exists. It is found that some factors, such as intense X-ray irradiation, various humidity and fine grain size, make the crystallization speed of amorphous state increases. Crystallization speed and perfection of LiIO3 in the amorphous state is higher than NaI03. The process of isothermal phase transition agrees with Johnson-Mehl-Avrami equation y(t) =l-exp(- btn), when y = 0.1-0.9, where y is the quantity of crystallization. For the sample with composition of 60 m /o LiI03, the Avrami time exponent n = 2-3 and rate constant parameter b increases exponentially with temperature. The activation energy of crystallization from amorphous state is found to be 2.21 eV.

本文对LiIO_3-NaIO_3赝二元系的相图,相变,非晶态的形成和稳定性,以及晶化的动力学过程等进行了仔细的研究,LiIO_3-NaIO_3赝二元系属共晶体系,共晶温度为325℃,共晶点成份为含50m/o LiIO_3,用共晶点附近成份的试样,在超过熔点150℃的情况下首次获得碘酸盐的非晶态,非晶态的存在降低了LiIO_3的表观相变温度,强X射线的辐照,各种空气湿度,细粒度等因素都加速非晶态的晶化速率,从二元系非晶态块中,LiIO_3晶化的速率与完整性都大于NaIO_3,当晶化量y=0.1—0.9时,等温晶化过程符合Johnson-MehI-Avrami方程式y(t)=1-exp(-bt~n),Avrami指数n=2—3,晶化速率常数b随温度指数增加,晶化激活能为2.21eV。

 
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