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σ芳香性
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σ芳香性
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sigma aromaticity
σ芳香性
环状饱和分子中由σ电子离域获得的相对稳定性,使该分子具有环的共平面性、化学上的稳定性、低场1H NMR位移、负的核独立化学位移以及顺时针磁感应电流等特性。
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governing equation of flow heat transfer
governing equations for convective heat transfer
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Government Affairs Committee of Xikang
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government affairs service user behavior analysis system
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governmental responsibility on environment and resources
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government appointment as an incentive for donation
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