“Kelvin-Helmholtz contraction”的概念、定义、翻译、参考文献-科学参考

单词	Kelvin-Helmholtz contraction
释义	Kelvin-Helmholtz contraction [`kel·vǝn `helm´hōlts kǝn´trak·shǝn] ^ASTROPHYSICS A contraction of a star once it is formed and before it is hot enough to ignite its hydrogen; the contraction converts gravitational potential energy into heat, some of which is radiated, with the remainder used to raise the internal temperature of the star.
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