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单词 tetravalency
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> as lemmas

tetraˈvalency
tetraˈvalency n.
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the world > matter > chemistry > valency > [noun] > valency of four > quality of being quadrivalent
quadrivalence1869
tetravalence1887
tetravalency1913
1913 London, Edinb., & Dublin Philos. Mag. 6th Ser. 26 495 The observed trivalency and tetravalency respectively of these elements.
1982 Nature 25 Nov. 386/1 Organic chemistry, thanks to the tetravalency of carbon and the stability of its incestuous bonds, is responsible for most of the compounds.
extracted from tetravalentadj.
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