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