mass density的例句大全

We model the density distribution in individual haloes using the NFW profile. For a given halo, there is a tight correlation between its inner scale radius rs and the mass within it.

我们运用NFW轮廓来拟合暗晕的密度分布，进而发现：内部特征半径rs和其内质量Ms的演化非常密切地相关。

Self-consistent solving the coupled Poisson and effective mass equations is based on the finite difference method, so the distribution of QPC electrostatic potential and electron density is acquired.

本文采用有限差分算法，对有效质量方程和泊松方程进行了准3D自洽求解，得到了QPC静电势和内部电子密度的分布。

All the results prove that the air density measurement system and the acoustic volumeter system are efficient and reliable and can provide good support to air buoyancy correction for high precision measurement of mass standards.

实验结果表明，空气密度测量系统和声学法砝码体积测量系统高效、可靠，能够为高准确度质量标准测量中的空气浮力修正提供足够的支持。

In this paper, mass distribution of fuel particles in the Binary Fluidised Bed ( BFB) consisting of materials of different density and size is discussed.

研究了稳定状态下异重流化床中颗粒沿床高的浓度分布规律。

an astronomer has confirmed that pluto and triton share the same density, mass, and size.

一位天文学家已确认冥王星与海卫一具有相同的密度、质量和体积。

astronomers have confirmed that pluto and triton share nearly identical mass, size, and density.

天文学家已证实冥王星与海卫一具有几乎相同的质量、体积和密度。

The particle density criterion and the temperature criterion of instability for the imperfect Fermi gas with weakly attractive interaction are given, and the dependance of the critical density of particles on the temperature and the mass of particle and the attractive interaction is discussed.

给出了不稳定性的粒子数密度判据和温度判据，就不同逸度情况下临界粒子数密度的具体表达结果以及温度、粒子质量和吸引相互作用对临界粒子数密度的影响进行了讨论。

the reason for the lessened effect is the lighter density. greater mass has greater gravitational pull.

影响减轻了的理由是更轻的密度, 更大的质量会具有更大的引力牵引.

In the gas-liquid or liquid-liquid mass transfer process, interfacial tension gradient and density gradient can create interfacial turbulence, by which the mass transfer coefficient can be intensified.

在气液和液液的传质过程中，由于在相界面上产生表面张力梯度和密度梯度，从而引发界面湍动。

To introduce the process of thermodiffusion multiwire brass line. The calculation formula of electroplating, calculation methods of coat mass and coat compositions, usual scope of current density are given, and a practical calculation example is also given.

介绍热扩散法多丝电镀黄铜作业线的生产工艺，给出电镀电流的计算公式及镀层质量和镀层成分的计算方法及电流密度的正常范围，并举实例进行了计算。

The effects of pressure, mass velocity, inlet subcooling, heat flux, and exit throttle on the flow instability were determined in the modeling experiment. The thresholds of the flow pattern transformation instability and that of the density wave instability were obtained.

通过模型试验确定了压力、质量流速、入口过冷度、热流密度、出口节流阻力等因素对不稳定性的影响，得出了流型转化型和密度波型不稳定性的界限。

The tissue mass culture method culture cells, cells grew well, form the normal density.

采用组织块培养法培养细胞，细胞长势良好、形态密度正常。

Factors affecting polypropylene melt index were discussed. Effects of hydrogen amount added, mass ratio of triethylaluminum ( TEAL) to cyclohexyl methyl-2-methoxy silane ( CMMS), density of slurry, volume of loop reactor, and type of catalyst used on polypropylene melt index were investigated.

分析了影响聚丙烯熔体流动指数的因素，考察了反应器氢气加入量、Al与Si质量比、浆液密度、反应器容积、催化剂品种对聚丙烯熔体流动指数的影响。

Quadrupole Mass Spectrum Analysis of Ultrahigh Density Storage Material

一种超高密度存储材料的四极质谱分析

And with the increase of portion of fine particles, the decay rate of number density increase obviously, so it can be indicated that the initial evaporation mass of mineral matter has little effect on the final quantity that fine particle emitted;

而且随细颗粒比例的增大，颗粒数密度的衰减速率显著增大，由此可以推断初始矿物蒸发量/初始细颗粒浓度对最终排放的细颗粒浓度的影响很小；

Average free path of ball movement was directly proportional to ball radius, ball density and cylinder volume and inversely proportional to material mass and charge ratio.

磨球运动的平均自由程与磨球半径、磨球密度、球罐体积成正比，与粉碎物料质量、球料比成反比。

A dual function resonator sensor& resonant mass flow/ density sensor

一种双功能谐振传感器&谐振式质量流量/密度传感器

The pasture mass is normally the function of sward height and sward density.

草地牧草的产量是植被高度和（或）密度函数。

Estimation of mean trace length and trace midpoint density of Rock Mass Joints

岩体节理平均迹长和迹线中点面密度估计