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第398章 挖洞了(2 / 2)

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【这是练了龟息术吧?】

【我看过一个叫甲壳蚁的扑街作者写的小说,听说龟息术是因为乌龟水中可以通过g门附近器官进行气体交换,也不知道真的假的】

【要不是说这话的人是方神,我是万万不可能性的】

无论如何,一立方米的空气能让人呼吸五个小时,实在是令人难以相信。

“我知道你们有人肯定不行,实际上做个简单的加减法你们就知道了,我给你们出道题。”毕方笑了笑,随即沉吟了一下,半晌后开口道。

“已知在一个大气压的正常空气中,一个普通成年男性在保持静卧的状态下,吸入的空气量大约为0.5立方米空气每小时,氧气的浓度21%,每小时呼吸0.5立方米空气,同时消耗5%的氧气,呼出的气体中含有大约16%的氧气和4%的二氧化碳。但氧气浓度降到6%,二氧化碳浓度达到8%时,人在几分钟内就会导致心脏停跳,现有一男子被困,只有一立方米的空气,请问这个男人可以坚持多久等到救援?”

就离谱!

【我他妈大学毕业了,还摆脱不了数学题吗?】

【代数学家!】

【原来数学不只是能用来买菜,真的有用,呜呜呜。】

【在算了在算了】

【算了算了】

“空气对人的呼吸来说有两个作用,一是提供充足的氧气供吸入,一个小时吸入大概是半立方米。另一方面空气还担负着人呼出的二氧化碳的扩散,完成这个任务大概需要每小时30立方米,这是健康生活的标准。”

“曾经就有人发生过戴口罩跑步猝死的事件。根本原因就是呼出空气中的二氧化碳没来得及扩散,又被吸回去的结果。”

“我不知道有没有人现在已经算出结果了,但我可以现在就告诉你,答案大概是5.2个小时,当然,这是粗略估算,实际情况不一样。因为呼吸一小段时间后空气中氧气含量低,人会增加呼吸深度甚至打哈欠,再加上处于小体积封闭空间内紧张呼吸频率快,5.2个小时是理想状态,基本上三个小时普通人就容易嗝屁了。”

毕方抬起头环顾四周,将密闭空间完整展示出来。

“这里少说也至少有十个立方,没必要担心氧气问题,说说话也是没事的,不过我们还是要尽快出去的好,因为这里的稳定性存疑,很可能会塌陷,我们不能一直待在这里。随意的挖洞可能会影响整个空间的稳定结构,所以我们从来时挖的洞口出去。”

毕方看着他和丹增进来的洞口,开始将洞内的积雪掏出,同时踢了一脚瘫倒在地上的姚俊。

“愣着干什么,起来干活了,还想不想吃饭了?”

姚俊楞了一下:“吃饭?又是面糊糊?我都快吃吐了。”

“可惜我没带多少能量棒,所以你在这里连面糊糊都吃不上,只能吃能量胶。”

“yue!”

一想到那口感神似鼻涕的能量胶,姚俊差点干呕,只能不情不愿地从地上爬起。

“妈的,我真是劳碌命。”

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