Complex sentence: Yongxing Island Airport has a runway that is long, capable of handling any third-generation fighter aircraft of the Chinese airforce such as the Sukhoi Su-30MKK.
Split into simpler sentences: Yongxing Island Airport has a runway that is long. It is capable of handling landings by any third-generation fighter aircraft of the Chinese airforce such as the Sukhoi Su-30MKK.