冰鉴是中国古代一种非常特别的“冰箱”。它通常由内外两层构成，中间放置冰块，再把食物或酒放入内部，从而利用冰的低温进行冷藏。
The ancient Ice Jian was essentially a remarkable form of “refrigerator” used in China. It generally consisted of an inner and outer container, with ice placed between them. Food or wine could then be stored inside and kept cool by the melting ice.
这种利用天然冰块降温的方式，在两千多年前就已经出现。对于没有电力和现代制冷设备的古人来说，冬天储存冰块、夏天用冰降温，是一种非常巧妙的生活智慧。它也说明，古人的“消暑科技”远比我们想象得丰富。
This method of using natural ice for cooling existed more than two thousand years ago. Without electricity or modern refrigeration, ancient people developed the clever practice of storing ice during winter and using it during summer. It is a fascinating example of how sophisticated ancient approaches to staying cool could be.