Gagarin died in 1968, after crashing a MiG fighter during a training flight.
加加林在1968年死于一次米格战机试飞事故。
In 1999, Ford crash-landed his helicopter during a training flight in Los Angeles but both he and the instructor were unhurt.
1999年，福特在洛杉矶进行直升机飞行训练时坠机，他和教练都未受伤。
In order to improve the level of training flight commander, improve training efficiency, reduce training costs, the "PC-based training of the simulator of flight command system" was developed.
为缩短飞行指挥员的训练周期，提高训练效率，降低训练成本，设计并实现了基于PC的飞行指挥训练系统。
In order to improve the level of training flight commander, improve training efficiency, reduce training costs, the "PC-based training of the simulator of flight command system" was developed.
为缩短飞行指挥员的训练周期，提高训练效率，降低训练成本，设计并实现了基于PC的飞行指挥训练系统。
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