Complex sentence: The deal, known as'906 project' within China, saw the Su-27 exported to a foreign country for the first time and in February 1991, an Su-27 performed a flight demonstration at Beijing's Nanyuan Airport.
Split into simpler sentences: The deal, known as'906 project' within China, saw the Su-27 exported to a foreign country for the first time. In February 1991, an Su-27 performed a flight demonstration at Beijing's Nanyuan Airport.