The density, mass, and size compare favorably to that of Earth. But, the atmosphere and surface features differ markedly.
它密度、质量和大小都和地球差不多，但大气和表面却截然不同。
The variation of the mass loss, packing density, surface area, distribution of pore diameter, amount of ash with the cyclical Numbers were researched.
考察了活性炭的失重率、堆密度、比表面、孔径分布及灰分含量随活化次数的增加而变化的情况。
This difference in surface gravity is due to a number of factors - mass, density, and radius being the foremost.
地表重力的差异源于很多因素的影响——质量，密度，半径(这是最重要的因素)。
Even though Mars has almost the same land surface area as Earth, it has only half the diameter and less density than Earth - possessing roughly 15% of Earth's volume and 11% of its mass.
虽然火星的表面积相当于地球的陆地面积，但是它的直径只有地球的一半，密度也小于地球，只有地球体积的15%，地球质量的11%。
The mass distribution of surface density can be derived from the laws of surface luminosity distribution for earlier-type discoid galaxies, of which the main contents are bright.
在早型的以发光天体为主体的盘状星系中，根据光度分布规律可以得到面密度分布。
The mass distribution of surface density can be derived from the laws of surface luminosity distribution for earlier-type discoid galaxies, of which the main contents are bright.
在早型的以发光天体为主体的盘状星系中，根据光度分布规律可以得到面密度分布。
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