单词	mean proportional
释义	mean proportional noun : geometric mean especially : the square root (such as x) of the product of two numbers (such as a and b) when expressed as the means of a proportion (such as a/x = x/b) Word History First Known Use 1571, in the meaning defined above
随便看	survigrous survivabilities survivability survivable survival survival instinct survival kit survival mechanism survival of actions survival of the fittest survival value survivalism survivalisms survivalist survivalists survivals survivance survivances survivant survive survived surviver survivers survives surviving

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