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零度以下：海水腐蚀木屋渔民斯科特购买红雪松铺设地板防海水侵蚀
阿拉斯加的海湾 渔民斯科特端着新买的木板放到了渔船上 海水的腐蚀性很强 含有多种溶解性盐类氯化钠 这些物质会对金属和其他材料产生腐蚀作用 特别是对于未经特殊处理的渔船屋子 像是斯科特的渔船就容易受到海水的侵蚀 要是不做点什么 很容易失去这些
零度以下的生活486/520
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