Two J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team perform on the opening day of the Dubai Airshow 2017 in Dubai, the United Arab Emirates, on Nov. 12, 2017. Six J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team demonstrated their acrobatic skills for the first time in the history of the Dubai Airshow which started on Sunday in its 15th edition. (Xinhua/Zhao Dingzhe)

　　J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team perform on the opening day of the Dubai Airshow 2017 in Dubai, the United Arab Emirates, on Nov. 12, 2017. Six J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team demonstrated their acrobatic skills for the first time in the history of the Dubai Airshow which started on Sunday in its 15th edition. (Xinhua/Zhao Dingzhe)

　　J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team perform on the opening day of the Dubai Airshow 2017 in Dubai, the United Arab Emirates, on Nov. 12, 2017. Six J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team demonstrated their acrobatic skills for the first time in the history of the Dubai Airshow which started on Sunday in its 15th edition. (Xinhua/Zhao Dingzhe)

　　J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team perform on the opening day of the Dubai Airshow 2017 in Dubai, the United Arab Emirates, on Nov. 12, 2017. Six J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team demonstrated their acrobatic skills for the first time in the history of the Dubai Airshow which started on Sunday in its 15th edition. (Xinhua/Zhao Dingzhe)

　　A J-10 aerobatic fighter jet of the Chinese Air Force's August 1st Air Demonstration Team performs on the opening day of the Dubai Airshow 2017 in Dubai, the United Arab Emirates, on Nov. 12, 2017. Six J-10 aerobatic fighter jets of the Chinese Air Force's August 1st Air Demonstration Team demonstrated their acrobatic skills for the first time in the history of the Dubai Airshow which started on Sunday in its 15th edition. (Xinhua/Zhao Dingzhe)