╠└╟┼╨ [αφπδ. maser, ε≥ M(icrowave) A(mplification) by S(timulated) E(mis-sion) of R(adiation) - ≤±ΦδσφΦσ ∞ΦΩ≡εΓεδφ (╤┬╫) ∩≡Φ ∩ε∞ε∙Φ ΦφΣ≤÷Φ≡εΓαφφεπε Φτδ≤≈σφΦ ] - ≥σ≡∞Φφ, εßετφα≈α■∙ΦΘ ΩΓαφ≥εΓ√σ ≤±ΦδΦ≥σδΦ Φ πσφσ≡α≥ε≡√ ≡αΣΦεΣΦα∩ατεφα. ╪Φ≡εΩε ∩≡Φ∞σφ ■≥±  Γ ∩≡Φ╕∞φ√⌡ ±Φ±≥σ∞α⌡ Ωε±∞Φ≈σ±ΩεΘ ±Γ τΦ.