http://www.w3.org/ns/prov#value | - In this specification, including the claims, the noun ???exitance??? and corresponding adjective ???exitant???, in relation to radiation from a surface, mean radiant exitance, i.e., the total power at all wavelengths leaving a unit area surface. ???Radiation exitant??? from the lower surface 35 of the workpiece 34 thus includes radiation both reflected and thermally emitted by the lower surface at
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