这个孔隙空间被称为孔隙度,用岩石总体积的百分比表示。
This pore space is known as porosity and is expressed as a percentage of the total rock volume.
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。
Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.
头围是大脑体积的一个衡量指标,所以新生儿头围越大,表明他们的大脑发育越快。
Head circumference is an indicator of brain volume, so a greater increase in head circumference in a newly-born baby suggests more rapid brain growth.
当洗脱体积为床体积的2倍时,黄酮的解吸速度很快。
The desorption of the flavones is fast when the elution volume is 2 times of bed volume.
就得到整个立体图形体积的一个估计值。
或者作为体积的函数。
对下鼻甲体积的测定是在三维重现中完成的。
The volume of the inferior turbinate was measured from the three-dimensional reconstruction.
是电荷与体积的比值。
但是随着引擎体积的增大,次生振动变得难以忍受。
But as the engine size increases, the vibration eventually becomes intolerable.
换句话说,在改变压强和体积的乘积时,发生了什么?
In other words, what matters here in changing the pressure volume product?
氖是空气中的稀有气体,只占空气体积的千分之几。
Neon, a rare gas in the air, takes only fractional percentage point of the volume.
好,我们接下来看看内能,我们假设,它是温度和体积的函数。
Ok, now, we're going to look at the internal energy, and we're going to pretend that it is explicitly a function of temperature and volume.
最大体积的行星发出的讯号总是会覆盖其它行星的讯号。
二者都是专门用来巡视广袤天穹,搜寻小体积的太空陨石。
Both are designed to survey wide swaths of the sky and could spot far more of the small space rocks.
瘦肌体积的增加可以加快新陈代谢,使日常热量的消耗加大。
The increase of lean muscle mass increases the metabolism which allows the body to burn more calories each day and night.
我们只需要把海水采上来,过滤,用不同的过滤器收集不同体积的生物体。
We just take seawater and we filter it, and we collect different size organisms on different filters.
随着晶体体积的增大,它的重量也相应增加,于是它将透过云层开始下落。
As it grows, it gets heavier. It starts falling through the cloud.
水的密度,是摩尔体积的倒数,所以密度,摩尔密度,等于一除以摩尔体积。
The density of water which is the inverse of the mole volume, so the density, the molar density, is equal to one over the molar volume.
现在我们想要做的是能够利用,温度,压强和体积的性质,计算上面的物理量。
OK, now what we'd like to do is be able to calculate any of these quantities in terms of temperature, pressure, volume properties.
我们发现小于0.5%的体积的改变就可以使它们握住多倍于它们质量的东西。
We find that volume changes of less than 0.5% suffice to grip objects reliably and hold them with forces exceeding many times their weight.
但是从面积或者体积的角度来讲,硅线中的硅仅占2%,其他98%都是聚合物。
But in terms of area or volume, just 2 percent of it is silicon, and 98 percent is polymer.
可一项新研究显示鸣鸟的骨头其实很结实,其密度也比相同体积的哺乳动物的大。
But a new study shows that songbirds' bones are actually pretty tough. In fact, they're more dense than the bones of mammals of the same size.
这个理论告诉我们,在任何给定体积的量子真空中都存在数不清的由虚粒子产生的电偶极子。
According to theory, there are countless electric dipoles created by virtual particles in any given volume of the quantum vacuum.
普伦蒂塞教授说人类的食欲诱使他们摄入相似体积的食物,而不顾食物的卡路里含量。
Professor Prentice said that the human appetite encouraged people to eat a similar bulk of food, regardless of its calorific value.
WASP - 12 b是一颗气态行星,大约是木星质量的1.5倍,体积的2倍。
WASP-12b is a gaseous planet, about 1.5 times the mass of Jupiter, and almost twice the size.
对流区的范围直达太阳表面,占有太阳体积的66%,但只有太阳质量的2%多一点儿。
The convection zone reaches up to the sun's surface, and makes up 66 percent of the sun's volume but only a little more than 2 percent of its mass.
为了吓退捕食者,这种鲨鱼可以用将胃部填满空气或水的方式使自己的身形膨胀到正常体积的两倍。
To scare off predators, this shark can balloon to twice its normal size by filling its stomach with air or water.
为了吓退捕食者,这种鲨鱼可以用将胃部填满空气或水的方式使自己的身形膨胀到正常体积的两倍。
To scare off predators, this shark can balloon to twice its normal size by filling its stomach with air or water.
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