The principle of measuring the hemisphere integrated radiant emittance by the radiation heat-equilibrium method (filament method) was discussed.
论述用辐射热平衡法（热丝法）测量材料半球全发射率的原理；
The principle of measuring the hemisphere integrated radiant emittance by the radiation heat-equilibrium method (filament method) was discussed.
论述用辐射热平衡法（热丝法）测量材料半球全发射率的原理；
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