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单词	cupferron
释义	cupferron noun cup·​fer·​ron ˈkəpfəˌrän, ˈk(y)üp- plural -s : a colorless crystalline salt C6H5N(NO)ONH4 that is a precipitant for copper and iron from solutions and is used also in the analysis of other metals especially of the uranium group : the ammonium salt of N-nitroso-N-phenyl-hydroxylamine Word History Etymology International Scientific Vocabulary cupric + ferric + -on
随便看	ry bark ry buckwheat ry eagle ry modern ry national monument ry response ry rules ry sphere ry-billed woodpecker ry-de-val ry-of-the-snow rya ryal ryals Ryan ryania ryanodine ryas Ryazan' rybats Rybinsk Rybinsk Reservoir Rybnik Rydberg Rydberg constant

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