Последние добавленные видео:
制盐
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1 year ago
6522 1 year ago 2:41古人是如何制盐的？把海水熬干后，能得到食用盐吗？
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2 years ago
5097 2 years ago 2:06穿越宝典：两种简易制盐法Two simple salt making methods
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1 year ago
1793 1 year ago 2:06假如流落荒岛，如何利用海水制盐？只需3个步骤
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2 years ago
6964 2 years ago 1:37古法制盐，全程不用机器，盐农每天要挑50担海水
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4 years ago
12 4 years ago 1:12人类早期制盐视频
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5 years ago
342538 5 years ago 5:31[Eng Sub] Where does salt come from?
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2 years ago
13 2 years ago 4:07肯尼亚小黑用古老方法制盐，1克盐能卖1美金，为何这么贵？
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2 years ago
457365 2 years ago 8:24把100斤海水煮干！熬盐！| Homemade Sea Salt
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2 years ago
2269 2 years ago 3:291000米深地底抽卤水制盐，用豆浆进行提纯，古人的智慧太厉害
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9 years ago
8567 9 years ago 24:27《海盐传奇》第二集 制盐 | CCTV纪录
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2 years ago
7270 2 years ago 7:51Fifteen years ago, the salt making technology in the deep mountain sold 100 yuan for 50 kg of salt.
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3 years ago
16899 3 years ago 3:06尝试用海水制作盐！
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8 months ago
8 8 months ago 3:21食盐与海水净化 #食盐来源 #制盐 #海水净化
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7 years ago
2992 7 years ago 7:05原始技术：制盐
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1 year ago
66 1 year ago 6:02『100个西藏日常』• 制盐的人【鹿鸣影像】
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3 years ago
8 3 years ago 1:21印度人说他们的制盐技术领先中国几千年，看完制作过程，我笑了！
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3 years ago
878 3 years ago 7:38东汉制盐画像砖到底是个什么砖？真实历史比故事更精彩 | CCTV「国家宝藏•展演季」
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2 years ago
1228 2 years ago 4:43印度沙漠里的盐农，一年辛苦制盐8个月，一吨仅能卖30块
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4 years ago
1748 4 years ago 8:29利用草木灰制盐，却不敢轻易食用！【丛林生存：第七集】