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    May 08

    说旧闻-下潜170公尺

    徒手潜水的深度纪录是109米,完全依靠自身力量下潜和上浮,同时也不配备呼吸器,而是依靠屏气在海里作长时间停留。
    而“无限制潜水”,潜水员下潜时借助重力装置,浮上来时借助浮力装置虽然方法上有所不同,但在两种状态下,潜水选手的身体都需要承受极大的压力。水压会压缩人体内所有的空腔,在水下30到40米深的地方,肺会收缩到最小,如果再往下,肺部就会产生低压,致使血液流向肺部血管和肺囊,这时血液就像一个保护盔甲,使水压无法损害肺部,人体的这种安全措施,被称作“血液变换”。依靠它,自由潜水员才有可能在深水中生存下来。
    而奥黛莉,在享受潜水的自在快乐和下潜深度竞争中,她的生命永远停驻在170公尺的那片蔚蓝深海中。

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    彭涛wrote:
    你喜欢潜水??
    May 14

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