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Equation Icon  { } M--∑ i(ωℓmnt+ϕℓmn )− t∕τℓmn ′ i(−ωℓmnt+ϕ′ℓmn) −t∕τℓmn ∗ h+(t) + ih ×(t) = r 𝒜 ℓmne e Sℓmn + 𝒜 ℓmne e Sℓmn ,(222 ) ℓmn