助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   质量密度 的翻译结果: 查询用时:0.624秒
图标索引 在分类学科中查询
所有学科
物理学
天文学
建筑科学与工程
金属学及金属工艺
地质学
燃料化工
武器工业与军事技术
特种医学
仪器仪表工业
更多类别查询

图标索引 历史查询
 

质量密度     
相关语句
  mass density
     Critical State Model Simulate Calculation of the Magnetization Loop of High Mass Density Tl 2Ba 2Ca 2Cu 3O 10 Bulk Sample in Low Magnetic Field
     临界态模型对高质量密度Tl_2Ba_2Ca_2Cu_3O_(10)块材样品低磁场磁化曲线的模拟计算
短句来源
     Mass Density and the Deceleration Parameter q_0 in Cosmos
     宇宙质量密度与减速参量q_0
短句来源
     The critical state model is used to perform the simulate calculation for the low magnetic field magnetization loop of high mass density Tl 2Ba 2Ca 2Cu 3O 10 bulk sample made by hot isostatic press method.
     用临界态模型对热均衡压方法制作的高质量密度Tl2Ba2Ca2Cu3O10块材样品在低磁场下的磁化曲线进行了模拟计算并与实验结果进行了对比。
短句来源
     Adapting only one free parameter, we have calculated the separation energies and mass density distributions of halo nuclei 11 Li, 11 Be and 19 C and they are in good agreement with the experimental data.
     用只有一个自由参数的模型 ,同时给出了晕核11Li,11Be和 19C的分离能和质量密度分布 ,和实验数据符合很好
短句来源
     Combined with the experiment and proper models,it is possible to evaluate the composites with the ultrasonic nondestructive detection,such as the quantitative information of the fiber volume ratio,mass density and rigidity matrix.
     结合实验技术和适当的材料模型,超声波无损识别复合材料诸如纤维体积比、质量密度和刚度矩阵的定量信息是有可能的。
短句来源
更多       
  quality density
     The garbage-filling field with clay liner can not meet the demand that the permeability coefficient is less than 10×10~(-7)cm/s. It can be improved by rebuilding soil quality density and reduce soil penetrability. Compacting test and permeability test is a tried and true detecting method and they are applied in this detection.
     某垃圾填埋场,由于场地内无自然的粘土防渗层,可做衬里的料场虽为粘土,但渗透系数满足不了小于1.0×10-7cm/s要求,可通过改造土的质量密度,减小土的渗透性来满足要求,击实试验与渗透试验是一种行之有效的检测方法,在此项检测中成功地进行了应用。
短句来源
     The number density is obtained by transforming the aerosol quality density which is gained directly from Andersen stage sampler.
     本文采用安德森分级采样直接获得的大气气溶胶质量密度换算成数密度。
短句来源
  “质量密度”译为未确定词的双语例句
     It showe d that density and nonlinear coefficient of SnO2-MgO-Nb2O5 can be enhanced by doping Co2O3.
     实验结果表明,Co2O3不仅能够增大SnO2-MgO-Nb2O5材料的质量密度,而且能提高非线性系数,减小漏电流,在较大程度上提高了SnO2-MgO-Nb2O5压敏材料的性能。
短句来源
     Sinterability was greatly improved by the addition of Al2O3 and Y2O3, the density and mechanical properties are increased remarkably.
     结果表明,Al2O3和Y2O3的添加可明显地改进烧结性能,同时质量密度和力学性能也有明显提高.
短句来源
     RESULTS:BMD measuted by QCT had siguificant linear correlation with bone ash density (spongy r=0.80, cortex r=0.79,P< 0.01), while it did not show significant correlation with bone ash weight(cortex r=0.39, spongy r=0.38,P >0.05).
     结果:定量CT的骨密度与灰质量密度线性相关性较好(松质r=0.80,皮质r=0.79,P<0.01),与灰质量的相关性较差(皮质r=0.39,松质r=0.38,P>0.05)。
短句来源
     The detection limit of this method is 0.024 μg/ml. The linear range is 0.05~2.0 μg/mL, and the correlation coefficient is 0.9996. The lowest detectable concentration of HCHO in air is 0.008 mg/m~3.
     方法的检出限为0.024μg mL,线性范围为0.05~2.0μg mL,相关系数为0.9996,测定空气中甲醛的最低质量密度为0.008mg m3。 改进后的方法可用于空气中微量甲醛的快速检测。
短句来源
     The mechanical properties of BN could be improved by adding B2O3. Because liquid was produced phase when sintering temperature was over the temperature 900C, so it improved Sintering properties of BN and increased the relative density of B2O3 -BN ceramics composites.
     添加B_2O_3烧结温度超过900℃时可以形成液相,改善了BN的烧结性能,提高了B_2O_3—BN复合陶瓷的相对质量密度,从而提高了材料的强度。
短句来源
更多       
查询“质量密度”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  mass density
If for the systems there is defined an entropy flux or mass density of entropy, then at the points of extremum of the velocity there is an extremum of the entropy production at the discontinuity and the entropy mass density.
      
The mass density and refractive index of these glasses were found in the ranges 3.95-2.89 g/cm3 and 1.55-1.40, respectively.
      
We derive dependences of the root-mean-square variations in BC velocity on microlense density, on external shear, and on the continuous component of the mass density, which may be related to dark matter in extragalactic lenses.
      
Graviton mass and the total relative mass density Ωtot in the universe
      
In principle, the mass density of the fourth neutrino n4νmN in the Universe can make the main contribution to dark matter, since the lower bound on the neutrino mass mN from the data on decay of the Z bosons is mN>amp;lt;mZ/2.
      
更多          
  quality density
Vibroimpact compaction methods were used to prepare large complicated shapes which in terms of quality (density and variations in density) are better than those made by tamping.
      


Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied....

Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied. The boundary of the jet is shown to be the same as that for one fluid. The solution of the problem then depends upon the numerical value of the coefticient of viscosity of the mixture which is a function of the number of molecules of each constituent gas in the unit volume. The present method of investigation is applicable to the cylindrical and half jets and also to the case where the two gases are at different temperatures.

本文求出规定二不能压缩气体的分片合流运动时,速度与质量密度分布的微分方程式。假定两种气体的密度不同但温度则相等。不能压缩的定义是每单位体积中的两种气体分子数的和不变。本文只讨论一平面守恒注中所需要的微分方程式。粘滞流体运动中之边界近似法仍可应用。同样方法亦可用到守恒圆柱体注,半注及气体中温度不同诸问题。

Using the data of inclination, radius and mass of disc galaxies, the mass density and oblateness of 93 disc galaxies have been obtained. The results show that the mass density of disc galaxies increases an order of magnitude from the early-type disc galaxies to the later one, oblateness decreases to minimum at Sd,m, and then increases Having excepted SO and IrII, these parameters vary with the type of disc galaxies monotonicly.

本文应用盘星系的倾角、半径及质量资料,求得93个盘星系的质量密度和真扁度。分析其结果得出,盘星系的质量密度从早型向晚型增大了一个量级;真扁度下降在sm,d达到极小。但去除so系及IrII之后,盘星系的这两项参数都是星系类型的单调函数。

The neutrino is rather peculiar and unique in the evolution of the universe. It is always as abundant as the photon in the universe. After the lepton era, its number density would be higher than that of baryon by a factor of about 109. Hence, the rest-mass of the neutrino being non-vanishing would influence greatly the mass density and further the evolution of the universe. In particular, the rest-mass of neutrinos would have important influence on those cosmic problems related with mass density, such as the...

The neutrino is rather peculiar and unique in the evolution of the universe. It is always as abundant as the photon in the universe. After the lepton era, its number density would be higher than that of baryon by a factor of about 109. Hence, the rest-mass of the neutrino being non-vanishing would influence greatly the mass density and further the evolution of the universe. In particular, the rest-mass of neutrinos would have important influence on those cosmic problems related with mass density, such as the problems of whether the universe being open or not, the gravitational clustering in the universe, and so on.

中微子在宇宙演化过程中具有十分特殊的地位。在宇宙的轻子时期之后,中微子的数密度要比重子的数密度约大10~9倍。中微子是唯一的始终可与光子数密度相比拟的粒子。因此,中微子是否具有静止质量,将极大地影响着宇宙中的质量密度,从而影响着宇宙演化的进程。特别是,对于那些与质量密度有关的宇宙学问题,例如宇宙的封闭或开放、宇宙中的引力成团过程等等,中微子的静质量有明显的作用。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关质量密度的内容
在知识搜索中查有关质量密度的内容
在数字搜索中查有关质量密度的内容
在概念知识元中查有关质量密度的内容
在学术趋势中查有关质量密度的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社