量热学:一卡路里是将一公斤水的温度提高一度所需的热量。1925年的匿名插图。私人收藏。(Calorimetry: a calorie is the amount of heat needed to raise the temperature of one kilogram of water by one degree. Anonymous illustration from 1925. Private collection.)匿名匿名 |
€ 96.73
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日期不详 · Engraving
· 图片ID: 918232
Private Collection / Bridgeman Images |
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