而DHV要求在带着模拟飞行员必须在60米的垂直下落距离内打开，下抛时备份伞是同假人处于同一高度并列放下。

DHV requires the parachute to open in less than 60 vertical meters when the load (simulating the pilot) and the parachute are dropped in free fall, side by side, at the same time.

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“这就像飞行员在飞行模拟器中接受训练一样。”与欧特力合作过的多伦多约克大学心理学副教授雷蒙德马尔说。

"It's like how pilots train in a flight simulator," said Raymond Mar, an associate professor of psychology at York University, in Toronto, who has collaborated with Oatley.

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另外，还有助于担负更多的直升机飞行员模拟时间。

Additionally, it would help pay for more simulation time for helicopter pilots.

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