中国人民解放军空军的英文缩写，
Further test and evaluation of the aircraft was carried out by the PLAAF until early 2004, when the aircraft was officially certified for design finalisation.
人民解放军空军对飞机的更进一步测试与评估持续到2004年的早些时候，此时飞机的最终生产型已经正式取得定型许可。
The PLAAF began to search for a successor to its forty-year-old CJ-6 basic trainer as early as 1993.
早在1993年PLAAF开始去寻找它服役四十年之久的CJ-6初级教练机的替代者。
The theoretical evaluation of the next generation basic trainer was completed by the PLAAF and Hongdu in 2003.
下一代初级教练机的理论评估在2003年被PLAAF和洪都公司完成了。
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