はん閉鎖 へいさ しきリブリーザーだったら
han'e isa shiki riburiizādattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 半閉鎖式リブリーザー

1. If it were a semi-closed circuit rebreather; Were it a semi-closed circuit rebreather

Tara Conditional