A titanic impact could have stripped away a portion of its rocky mantle, leaving behind a metallic core whose density is out of proportion with the original ratio of rock to metal.
超大碰撞可能剥去了水星的一部分岩石地幔，留下了一个金属核心，其密度与原来的岩石与金属的比例相比大得不成比例。
With increase of bed height, air pressure and power consumption rise, expansion ratio of the bed decreases, but the density stability and critical fluidized velocity of the bed are hardly changed.
随着床层高度的增加，所需风压及功率增大，膨胀率有所降低，而床层密度的稳定性和起始流化气速几乎不变。
It is always a challenge of not able to get a good aperture ratio as the resolution density increases.
它始终是一个挑战，无法获得良好的孔径比为第密度增加。
The test proves that the density of ion flowing and the ratio of ions to neutral particles are important testing coefficients.
试验证明，试样台上的离子流密度及离子与中性粒子的比例是重要的试验参数。
By controlling the range of the dry density, magnitude of cement and water cement ratio of mixture, the requirement of drainage property and structure strength can be fulfilled.
通过控制混合料的干密度、水泥用量和水灰比的取值范围，可使混合料同时满足排水性能要求和结构强度要求。
The body density has a negative correlation with the cross-sectional areas of the thigh, but positive correlation with fat ratio.
运动员身体密度与大腿断面各组成的面积均呈一定的负相关，而体脂率与其呈正相关。
The parameters of porous Alumina membrane, such as aperture, hole density and aspect ratio, membrane thickness, had been effected by many factors mentioned above.
多孔铝膜的膜参数(孔径、孔密度、孔的纵横比和膜厚)和孔排布的规律性受到诸多因素的影响和制约。
Development tendency of mechanical properties is: density increase oil content ratio decreases, Brinall hardness increases, crushing strength goes down first and then goes up.
机械性能的变化趋势是：密度增加，含油率下降，布氏硬度增加，而压溃强度先降低后增加。
Test results indicate that void ratio, asphalt content and density have great influence on road usage performance of recycle asphalt mixture.
试验结果表明，空隙率、沥青含量和密度对再生沥青混合料路用性能影响很大。
The yield strength, yield ratio increase with the increase of annealing temperature, due to the impact of non-martensite and the decrease of movable dislocation density.
受非马氏体组织的影响及可动位错密度降低的作用，屈服强度、屈强比随退火温度升高而升高。
ZGZTC can obviously increase the ratio of bone trabecula to marrow cavity and the average bone trabecula density of left femoral head(P<0.01).
壮骨止痛胶囊能明显提高模型鼠左股骨颈梁髓比和左股骨头区域的平均骨小梁密度（P<0.01）。
Send soil samples to lab for compaction test so as to determine the most reasonable water content ratio to enable on-site control of dry density.
将土样送试验室做击实试验，确定其最优含水率和现场控制干密度。
Root length density varied with fertigation frequencies, and the ratio of root length for different soil layers to the total root length in the profile varied with fertigation strategies.
施肥频率对根密度的影响主要是引起各土层根密度大小的变化，运行方式则对各土层根长占整个剖面根长总和的比例产生影响。
The research showed that the solid loading, content of monomer and ratio of monomer and crossing linker were the main effect factors on the density.
结果表明，影响凝胶注模陶瓷坯片密度的因素主要有：料浆的固含量、单体含量、单体和胶联剂的比值。
For the same mist density, the decay ratio of the shock wave increases with the decrease in the water mist diameter.
相同水雾密度时，水雾的雾滴直径越小，冲击波的衰减率越大。
The improved experimentation by using electronic balance to measure the density and the pore ratio of ceramic materials was designed.
提出了利用电子天平测量陶瓷材料密度及其气孔率的方法。
Affected by electromagnetism and structure, the rotor shaft of big length to diameter ratio high power density asynchronous motor shows low intensity and bad rigidity.
大长径比高功率密度电机受电磁及结构因素的影响，转轴的强度低，钢度差。
The models for predicting elastic modulus along the grain of poplar veneer were built, in which compression ratio, glue content, density, and thickness of veneer were considered.
着重讨论速生杨木单板顺纹弹性模量预测模型，模型中考虑到单板的压缩率、单板中含胶量、单板的密度和单板的厚度等影响因素。
Influence of compressive ratio and density on sound absorbing property of foamed aluminum made by bubbling method has been studied and compared with that of Japanese sample.
研究了压缩率和密度对发泡法制备的泡沫铝样品吸声性能的影响，与报道的日本用发泡法制备的泡沫铝样品的研究结果进行了比较。
The neglect of density flow ratio effect can lead to errors in aerodynamic design.
如不注意密流比效应，可能导致设计错误。
In this simulation. the density ratio of beam electron and background electron is 0.125.
数值模拟的束流密度与背景电子密度之比为0.125。数值模拟的结果说明，两者相符较好。
The results showed that the density of sample was inverse ratio to the area percent of pores, it validated the feasibility of our ideas indirectly.
结果表明各试样的气孔所占面积百分比与试样的密度存在着较好的反比关系，从侧面验证了思路的可行性。
This paper emphatically discusses maximum value calculation of some common weave density, cover ratio and full ratio, and these indexes have relations to fabric structure phase.
文中重点探讨了几种常见织物组织的密度、度率及充实率最大值的计算及其与织物结构相的关系。
Then the corresponding sonic velocity of the two-phase flow is determined by the void ratio, pressure and density of the liquid phase.
其对应的音速与汽液两相流体的空泡率、压力及液相密度等因素有关。
They are derived by use of the ratio of the macroscopic kinetic energy density to the magnetic energy density.
它们是利用宏观动能密度对磁能密度的比例导出的。
The effect of the density ratio has also been considered.
其次，研究了密度比对两相平面剪切层演化的影响。
The influence of the factors, such as the molar ratio of acetic acid ton-butanol, the feed rate of the reactants and packing density of the catalyst, was investigated.
考察了酸醇投料摩尔比、混合液的进料流量、催化剂的填充密度等因素对反应过程的影响。
The ratio of damaged trees was negatively correlated with stand density, soil depth and size class of diameter, and positively correlated with tree height.
林分密度和受灾率及土层厚度和受害株数均呈显著的线性负相关；
It is pointed that with the increase of current density, the sulfur transfer ratio of regeneration liquor and the vitriol concentrating ratio will go up while the current efficiency will fall down.
实验结果表明，随着电流密度的增大，再生液的硫迁移比、硫酸浓缩倍率增大，电流效率降低。
Finally, the influence of shear rate and the number density and aspect ratio of the fibers are discussed.
最后讨论了纤维的浓度和长径比等因素对悬浮流微观和宏观性质的影响。
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