Gyroplanes have a significantly higher fatal accident rate than other classes of recreational aircraft.
表明旋翼机比传统机的事故率要高很多。
In the past decade, the fatal accident rate for airlines hasn't been higher than 0.6 per million flights.
过去10年以来，客机致命事故一直没有超过每百万架次0.6的失事比率。
The McDonnell Douglas MD-80, still widely in use, has a fatal accident rate of 0.31 per million departures.
仍在广泛使用的麦道公司(McDonnell Douglas)的MD- 80型飞机，每百万次飞行发生的致命事故数是0.31。
The McDonnell Douglas MD-80, still widely in use, has a fatal accident rate of 0.31 per million departures.
仍在广泛使用的麦道公司(McDonnell Douglas)的MD- 80型飞机，每百万次飞行发生的致命事故数是0.31。
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