... Mayan astronomy 玛雅天文学 mean absorption coefficient 平均吸收系数 mean anomaly 平近点角 ...
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当气体介质等温、均匀时，分别计算气体介质的普朗克平均吸收系数、有效吸收系数和壁面入射平均吸收系数。
While the gas medium is isothermal uniformed, the dissertation calculates the effective absorption coefficient, the Planck-mean absorption coefficient and the wall-incident mean coefficient.
研究了与灰体辐射场相互作用的J-C模型中场的线性熵的演化规律，讨论了腔体吸收系数、入射场的光子数分布、热场的平均光子数对场的线性熵的影响。
The evolutional rules of linear entropy of field in the model of Jaynes-Cumming(JC) that acts each other with radiation field of a grey body are studied.
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