benzene ring
noun [ C ] chemistry specialized uk/ˈben.ziːn ˌrɪŋ/ us/ˈben.ziːn ˌrɪŋ/
(化学)苯环(苯分子中以六个碳原子构成的环状结构)
in chemistry, a connected ring of six carbon atoms, as found in a molecule of benzene
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