例句與造句

1. "As far back as the 17th century people made a fluid lens, but it wasn't capable of focusing ."
2. Soc ., 1791, 3, p . 3 ), P . Barlow, and F . S . Archer overcame the difficulty by constructing fluid lenses between glass walls.
3. It's difficult to find fluid lens in a sentence. 用fluid lens造句挺難的