To prevent this, which underwater divers call the bends, Fournier will breathe pure oxygen for two to three hours before liftoff.
为了防止这种被潜水员称为弯曲病的病症发生，弗尔涅会在升空前呼吸2到3分钟的纯氧。
Free diving - how long on average do the divers hold their breath for and can they get the bends when they are ascending from those depths?
自由潜水者平均可以屏住呼吸多长时间？他们从那些深度上来时会发生减压问题吗？
Free diving - how long on average do the divers hold their breath for and can they get the bends when they are ascending from those depths?
自由潜水者平均可以屏住呼吸多长时间？他们从那些深度上来时会发生减压问题吗？
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