Radiation,Electromagnetic
《英文msh詞典》Radiation,Electromagnetic
[入口詞] Radiation,Electromagnetic
[主題詞] Radiation
[英文釋義] Emission or propagation of electromagnetic energy (waves/rays),or the waves/rays themselves; a stream of electromagnetic particles (electrons,neutrons,protons,alpha particles) or a mixture of these. The most common source is the sun.