Because calculations and lab experiments replicating the Venusian surface and atmosphere show that emissivity decreases over time, emissivity can be an important indicator of a substance's age.
同时因为计算与实验室的实验复制的金星地表与大气层的活动,表明辐射率一直在下降,所以辐射率能够成为某个地质年代的一个重要指标。