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喝兽血或许是人类最初获取盐分的主要方式之一,进入农耕时代后,人类无法从植物中获得足够的盐分,必须去寻找自然界的天然盐以保证自身的生理需求。从自然界获取盐的来源,包括海水、海滩上的盐花,盐湖中的卤水、盐块以及地面上的盐泉和岩盐等。在距今已有七八千年历史的浙江跨湖桥遗址,出土了用盐作为助溶剂的黑光陶,这表明史前人可能已经掌握了制盐的技术。
Beast blood may be one of the main ways humans first obtain salt. After entering the farming era, humans can not get enough salt from plants and must look for the natural salt in nature to ensure their own physiological needs. Sources of salt from nature, including seawater, salt flowers on the beach, brine in the salt lake, salt blocks and salt springs and rock salt on the ground. At the site of the cross-lake bridge in Zhejiang Province, which has a history of seven to eight years, a black pottery with salt as a solubilizer has been unearthed. This shows that the prehistoric man may have mastered the technology of making salt.