单词 | concentration |
释义 | concentration [´kän·sǝn`trā·shǝn] CHEMISTRY In solutions, the mass, volume, or number of moles of solute present in proportion to the amount of solvent or total solution. HYDROLOGY The ratio of the area of the sea covered by ice to the total area of sea surface. MATHEMATICS An operation that provides a relatively sharp boundary to a fuzzy set; for a fuzzy set A with membership function mA , a concentration of A is a fuzzy set whose membership function has the value [mA(x )]α for every element x, where α is a fixed number that is greater than 1. MINING ENGINEERING Separation and accumulation of economic minerals from gangue. |
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