ちょう ちょう距離 きょり干渉 かんしょう けいであれば
chōchōkyorikanshōkeideareba

Noun
Da Copula

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

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

Ba Conditional
Astronomy