emissivity 的定义
Thermodynamics.
- the ability of a surface to emit radiant energy compared to that of a black body at the same temperature and with the same area.
更多emissivity例句
- Low-e, for “low emissivity,” refers to a microscopically thin coating of metallic particles that reflect some wavelengths of light while allowing most of the visible wavelengths to pass through.
- Values which are commonly given for the surface emissivity must therefore be accepted with great reserve.
- The emissivity increases with the temperature, else no state of thermal equilibrium could be reached.
- Although these mantles emitted a brilliant light for a few hours, their light-emissivity was destroyed by carbonization.