略語大辞典 [Opt] 31 ELRR Ermakov-Lewis-Ray-Reid (invariant) エルマコフ-ルイス-レイ-リード(不変量).Ermakov-Lewis-Ray-Reid (invariant); for Ermakov systems, the system of equations describing the propagation of elliptic Gaussian beams; [Opt:Phys:Math]. 丸善「略語大辞典」JLogosID : 11873543