ちょう ちょう距離 きょり干渉 かんしょう けいだったら
chōchōkyorikanshōkeidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 超長距離干渉計

1. If it were an ultra-long-baseline interferometer; Were it an ultra-long-baseline interferometer

Tara Conditional
Astronomy