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解惑“旗袍做双人运动”-译文小记

女子坠海漂旗袍做双人运动浮自救 羽绒服变临时“救生衣”奥秘何在?

来源: 中国商报
2024-12-24 01:25:37

最佳回答

“旗袍做双人运动”女子坠海漂旗袍做双人运动浮自救 羽绒服变临时“救生衣”奥秘何在?

  近日旗袍做双人运动,在山东青岛,一女子意外坠海。旗袍做双人运动但幸运的是,该女子靠着羽绒服提供的临时浮力漂浮在海面上,最终成功获救。

  当天下午,在青岛市市南区五四广场附近海域,一女子不慎跌入海中。附近群众发现后立即拨打救援电话,2分钟后,救援人员赶到了现场。

  很快,救援人员发现了落水女子。因为身着羽绒服,这名女子凭借羽绒服提供的临时浮力,仰面朝上漂浮在海面上。

  因为救援及时,该女子并无大碍。而她落水后冷静漂浮自救,也为救援争取了宝贵的时间。

  羽绒服变临时“救生衣”的奥秘

  常用的溺水救生设施如救生圈、救生衣等,它们一般是利用浮力原理,让落水者漂浮于水面,避免下沉。那么,为什么在遇水后羽绒服也能提供一定时间的浮力支撑呢?冬季落水后,人们又该如何应对呢?

  国家水域救援青岛大队的救援人员表示,羽绒服之所以能在水中提供浮力,主要是因为其面料通常为聚酯纤维,吸水性差、不易透气,加上填充的大量羽绒使其充满空气,落水后会形成气腔,提供浮力支撑。

  然而,随着浸泡时间的增长,浮力会逐渐减弱,甚至失去浮力。因此,决不能将羽绒服作为专业救生衣使用。

  救援人员还提示,冬季气温低,如果意外落水,首先不要慌乱,保持呼吸的稳定。如果坠入未结冰的水中,需利用一切可以漂浮的物体,如背包、塑料容器、泡沫箱、衣物等,使身体漂浮在水面上,并且大声呼叫求救,如身边有颜色鲜艳的物品可以挥动吸引注意力,等待救援。

  如果坠入冰窟中,尽量身体放平,双手扶住冰面微微用力,慢慢爬上冰面,并通过翻滚的方式离开危险区域。

  (央视新闻客户端)

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