恒星密度
- Stellar density;star density
恒星密度-
为使密度波得以长期维持，星系中气体密度与恒星密度之比η应小于某一值。
The ratio η between the densities of gas and stars in galaxies should be less than a certain value to maintain the density waves for a long time ;
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星际气体激波与恒星线性密度波的总合自洽解
The consistent solution for both the Galactic gaseous shock and linear stellar density wave
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另一颗是白矮星—一种小型，昏暗，比地球稍大点的恒星，但密度极高，一汤匙的物质就有几吨重。
The other is a white dwarf - a small , dim star a little larger than Earth , but so dense that a spoonful weighs tons .
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孕育恒星的星云的密度和环绕地球的太空的密度是一样的。
1 the clouds from which stars are born are as dense as the space around earth .