A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command takes off from a military airfield during a recent night flight training exercise. (Photo: eng.chinamil.com.cn)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command taxis on the runway before takeoff during a recent night flight training exercise. (Photo: eng.chinamil.com.cn)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command taxis on the runway before takeoff during a recent night flight training exercise. (Photo: eng.chinamil.com.cn)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command taxis on the runway before takeoff during a recent night flight training exercise. (Photo: eng.chinamil.com.cn)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command taxis on the runway before takeoff during a recent night flight training exercise. (Photo: eng.chinamil.com.cn)