单词	Boltzmann constant
释义	Boltzmann constant noun Boltz·​mann constant ˈbōlts-mən-  -ˌmän- variants or less commonly Boltzmann's constant : the ideal gas constant per molecule being the ratio of the molar gas constant to the number of molecules of a substance in a gram molecule and having a value of exactly 1.380649 × 10−23 joules per kelvin Word History Etymology after Ludwig Boltzmann †1906 Austrian physicist First Known Use 1914, in the meaning defined above
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