单词	Planck radiation law
释义	Planck radiation law noun 1 : a law in physics: radiant energy arising from processes within atoms or molecules is emitted in finite quanta each of which is equal to the product of the radiation frequency by a universal constant h see planck constant 2 : a law in physics: the energy density of radiation within a blackbody cavity at absolute temperature T in terms of the wavelength λ is given by ΔPλ = ((8πhc)/λ5[ehc/(KλT) - 1]) Δλ where ΔPλ is the energy density within a given small wavelength interval Δλ, h is the Planck constant, and c the speed of light, all quantities being in cgs units Word History Etymology after Max K. E. L. Planck
随便看	cancellanda cancellands cancellandum cancellans cancellanses cancellantia cancellaresca cancellaresca corsiva Cancellaria Cancellariidae cancellation cancellations cancelled cancelled out canceller cancellers cancelling cancelling out cancellous cancellus cancels cancels (out) cancels out cancer cancer jalap

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