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.
用它不仅可以在线测量表面的全热流，而且还可同时测出被测表面的真实温度和发射率。
It can be used not only for the on-line measurement of total heat flow but also for the simultaneous measurements of true temperature and emissivity.
本章介绍了一种用于半球全波发射率测量的动态技术。
A new dynamic technique for the measurement of Hemispherical Total Emittance is described in the present paper.
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