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单词	Baeyer strain theory
释义	Baeyer strain theory noun Bae·​yer strain theory bā(y)ə(r)- : a theory in chemistry: the four valences of carbon are normally directed symmetrically in space making angles of 109° 28′ with one another and deflection of these directions produces strain in the molecule (as in the formation of rings) Word History Etymology after Adolf von Baeyer†1917 German chemist First Known Use 1921, in the meaning defined above
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