きゅう〇式 しき だい空中 くうちゅう聴音 ちょうおん だったら
kyūreishikidaikūchūchōonkidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 九〇式大空中聴音機

1. If it were a Type 90 Large Airborne Sound Detection Device.; If it had been a Type 90 Large Airborne Sound Detection Device.

Tara Conditional