original: With its completion in 1992, uninterrupted water transport was made possible between the North Sea and the Black Sea.
simplifications: Uniterrupted water transport was made possible between the North Sea and the Black Sea in 1992. When it was built in 1992, water transport was operational between the North Sea and the Black Sea. Uninterrupted water transport was made possible between the North Sea and the Black Sea. When it was completed in 1992, transporting things between the North Sea and the Black Sea without stopping became possible. It was done in 1992. Then uninterrupted water transport was possible between the North Sea and the Black Sea. After its completion in 1992, uninterrupted water transport was made possible between the North and the Black Sea. When it was completed, direct water transport between the North Sea and Black Sea became possible. Since being completed in 1992, water has been able to be transported between the North and Black Sea. Uninterrupted water transport from the North and Black Sea's was allowed with its completion in 1992. Uninterrupted water transport was made possible between the North Sea and the Black Sea when it was completed in 1992.