nature of corpus albicans
The transmission body has t = 1 for incident radiation. The main factors affecting the absorption and reflection properties of a solid surface are the surface condition and color. The effect of surface condition is often greater than color. Solids and liquids are generally impermeable to heat. The energy of heat radiation passes through a solid or liquid surface only after a short distance (generally less than 1mm, and it passes through only 1um after passing through a metal surface) and is completely absorbed.