重厚 じゅうこう長大 ちょうだい産業 さんぎょうであれば
jūkōchōdaisangyōdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 重厚長大産業

1. If it were a heavy and large industry; If it is a heavy and large industry

Ba Conditional