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expected frequency
期望频次
统计检验中,在虚无假设H0成立(行变量与列变量无任何关联性)的情况下,列联表每个格中的数值。
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charge-transfer absorption spectrum
charge transfer coefficient
charge transfer complex
charge-transfer complex
charge transfer complex, CTC
charge transfer (CT)
charge transfer device
charge transfer device, CTD
charge-transfer exciton
charge transfer initiation
charge transfer insulator
charge transfer interaction
charge-transfer interaction
charge transfer overpotential
charge transfer polymerization
charge transfer process
charge transfer reaction
charge transfer salt
charge-transfer salt
charge transfer state
charge-transfer state
charge transfer state, charge-transfer state
charge transfer transition
charge transport
charge trap flash
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