対地たいち接近せっきん警報けいほう装置そうちでしょう
taichisekkinkeihōsōchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 対地接近警報装置

1. Probably a ground proximity warning system.

Polite
Presumptive
Conjecture
Aviation