直升飞机两个发动机中的一个突然熄火时，直升机撞地着陆。
The helicopter crash landed when one of its two engines cut out.
最后，直升机到达，我给的信号，开始我的发动机。
Finally the helicopter arrives and I am given the signal to start my engine.
军用直升机使用西方发动机并不是新闻。
This use of Western engines in military helicopters is not new.
军用直升机使用西方发动机并不是新闻。
This use of Western engines in military helicopters is not new.
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