Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.
因为这些星系的质量分布在更大的区域，它们每单位体积的恒星数量比传统星系要少得多。
By the charge density we mean the per unit volume.
所谓的电荷密度是指单位体积的电荷。
It is the amount of electric charge per unit volume.
是电荷与体积的比值。
Bulk density is defined as the weight per unit volume of loosely tipped fuel.
堆积密度是指每单位重量的体积松散倾斜燃料。
In physics it is an identification of material by noting its mass per unit volume.
在物理学上，是以每单位体积的质量来鉴别物质。
After the eccentric CAM turning impeller, per unit volume reduction of the cavity.
叶轮转过偏心凸轮后，每单元空腔的容积减少。
However, a silicon anode can store about 10 times more (per unit volume) lithium ions.
如果用硅制作阳极，其单位体积锂离子容量可达到前者的10倍左右。
The mass per unit volume of a substance under specified conditions of pressure and temperature.
在特定压力和温度条件下某物质单位体积的质量。
So, the divergence itself measures basically the amount of sources or sinks per unit volume in a given place.
散度本身度量了，给定区域的,单位体积内的冒出的，或者流失的量。
These rare earth magnets produce a higher magnetic energy per unit volume than most commercially available permanent magnets.
这些稀土磁体产生每单位体积的高磁能比大多数市售的永磁体。
Those include uncovering how bubble growth rates vary with the number of bubble sides and minimizing the surface area per unit volume.
比如探究气泡生长速率如何随气泡面的数目变化而变化，以及单位容量内使表面积最小化。
The number of hydrogen atoms per unit volume divided by the number of hydrogen atoms per unit volume of pure water at surface conditions.
单位孔隙中氢原子数量与地面条件下单位体积纯水中氢原子数量的比值。
The results showed that with the increase of cleanness of the melt, the number of grain per unit volume increased at first, and then decreased.
证明随着熔体洁净度增大，单位体积中的晶粒数将先增加，然后减少。
The Achilles' heel of the technology appears to be its low energy density, or amount of energy that can be stored inside the battery per unit volume.
该技术的阿基里斯的脚跟似乎是它的低能量密度，或可以存储在电池每单位体积的能量量。
The total dislocation length per unit volume of material, alternately, the number of dislocations that intersect a unit area of a random surface section.
在单位体积材料中包含位错的长度，或者说在材料内部任意单位截面上位错线的根数。
Objective:Osteoporosis means that the bone weight per unit volume and bone strength reduce. which induce systematic osteonosus for increase of bone fragility.
前言： 目的：骨质疏松是指单位体积骨量的减少与骨强度的降低。骨量减少和骨显微结构受损既而引起骨脆性增加的系统性骨科疾病。
Because cooler air has a higher density (greater mass per unit volume), cold air intakes generally work by introducing cooler air from outside the hot engine bay.
因为冷气流密度较高(更大的质量单位体积内)，冷空气引入采一般的工作从外面冷空气热引擎湾。
The impact penetrant specific energy of frozen soil indicates the work of chiseling the frozen soil per unit volume, and reflects the ability to impact frozen soil.
冻土凿碎比能是表示凿碎单位体积冻土所消耗的功，它反映了冲击破碎冻土的能力。
If I integrate the concentration of smoke, which means the amount of smoke per unit volume over d, I will get the total amount of smoke in d, except, well, let's see.
如果对烟雾的浓度积分，浓度就是区域d中，单位体积的烟雾的量，我们就得到了烟雾的总量。
The surface area of aggregate per unit volume of mortar does have influence on the mean value of the nearest surface spacing, but the ratio between them is not constant.
单位砂浆体积下集料的表面积的变化对邻近集料表面最近间距的平均值有影响，但二者之间的比值并非常数。
When similar flow rate of dialysate or substitution are used, CVVHDF mode has the highest clearance, while CVVHD appears most effective for solute removal per unit volume of liquid.
在相同透析液和置换液流量情况下，CVVHDF模式溶质清除率最高，而CVVHD的溶液利用效率较高。
The amount of energy a battery can store per unit volume is increasing by 8% a year, but the needs of ever more powerful electronic devices are going up more than three times as fast.
一块电池所能存贮的单位能量每年增长8%，然而，对电子设备的能量需求却以每年超过24%的速度持续增长。
The number of effective crosslinking chains per unit volume (ve) and the average molecular weights between crosslinks (Mc) were determined by means of equilibrium swelling measurement.
用溶剂溶胀平衡法测定了聚氨酯单一网络的单位体积内有效交联链的数目和交联点间平均分子量。
In order to analyzing the influents of length, width, height and effective contact area per unit volume, three kinds of fills whose character are different selected as experiment speriment.
为了研究填料的长、宽、高、比表面积这些特征尺寸对填料热质传递性能的影响，本文选用了三种不同特征尺寸的铝质填料进行冷却除湿实验研究。
The sinusoids are packed with RBC's in this case of hereditary spherocytosis. The osmotic fragility of spherocytes is increased, because the RBC's have decreased surface area per unit volume.
遗传性球形红细胞增多症中，窦状隙被RBC塞满，球形红细胞的渗透性脆性增加，因为RBC每单位体积的表面积减少。
The difference between amount per unit volume and bulk density of refractory castable in definition is pointed out, a testing method of amount per unit volume of refractory castable is introduced.
指出了耐火浇注料单位体积用量与体积密度定义上的区别，介绍了一种测试耐火浇注料单位体积用量的试验方法。
It displays key details about the usage of a business service such as its volume, cost per unit, cost modifier, and the total cost in a particular period.
它显示关于业务服务使用情况的关键信息，比如使用量、单位成本、成本修饰符和某一时间段内的总成本。
Mass per unit of volume in powder form, including the air trapped between the particles.
每单位体积粉末的质量，包括粒子之间的空气。
The kinetic energy of per unit penetration volume and the impact kinetic energy per unit cross section are introduced to review their relation by dealing with the experimental data.
引入射弹单位面积的冲击动能和靶体单位侵彻体积的冲击动能，结合钢纤维混凝土靶的实验数据，考察了两者之间的关系。
The kinetic energy of per unit penetration volume and the impact kinetic energy per unit cross section are introduced to review their relation by dealing with the experimental data.
引入射弹单位面积的冲击动能和靶体单位侵彻体积的冲击动能，结合钢纤维混凝土靶的实验数据，考察了两者之间的关系。
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