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A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
A PLA Air Force warplane in an ultra-low altitude flight training in a valley, April 25, 2019. (Photo/81.cn)
