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Astronautics (Ttkba)

Disciplines (T)
    Technology (Tt)
         Use For: Biotechnology
        Engineering (Ttk)
            Aerospace engineering (Ttkb)
                Astronautics (Ttkba)
                     Use For: Space engineering
                     Related Term (Associative): Spacecraft (Qbn); Avionics (Ttkbbb)
                Aeronautical engineering (Ttkbb)
                     Related Term (Associative): Aircraft (Qbk)