The absorption term also is relatively straight forward, macroscopic absorption cross section times the flux.
吸收项也是相对直接的，宏观吸收横截面乘以流量。
And that is measured as a macroscopic cross section of absorption thermal divided by the integral of all energies in terms of absorptions.
那是被测量的，作为吸收热能的，宏观横截面，除以全部的，吸收的能量的乘积。
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