单词	Liouville's theorem
释义	Liouville's theorem noun Liou·​ville's theorem (ˈ)lyü¦vēlz- : a theorem in fluid dynamics: the density of any selected part of a stream of fluid that does no work and that has no work done on it remains constant as that part moves along its stream line Word History Etymology after Joseph Liouville †1882 French mathematician
随便看	filterable virus filtered filterer filterers filtering filtering flask filterman filtermen filters filth filth disease filthied filthier filthies filthiest filthilier filthiliest filthily filthiness filthinesses filths filthy filthy dirty filthy lucre filthy rich

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