Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans.
在数十亿年的时间里,这些气体被引力压缩成星系、恒星、植物,最终甚至变成了人类。
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It brings rigor to another question of statistical physics: How quickly does a highly organized system, such as compressedgas about to be released, reach its disordered equilibrium state?