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Afterburners (Qpwyb)

Vehicles and equipment (Q)
    Vehicle components (Qp)
         Related Term (Associative): 
        Emission control systems (Qpw)
             Related Term (Associative): Pollutants (Jfgs); Pollution control (Jfgy)
            Emission control devices (Qpwy)
                Afterburners (Qpwyb)
                Catalytic converters (Qpwyc)