英语释义
1. the amount of heat required at a pressure of one atmosphere to raise the temperature of one gram of water one degree Celsius that is equal to about 4.19 joules —abbreviation cal — called also gram calorie, small calorie
2. the amount of heat required to raise the temperature of one kilogram of water one degree Celsius 1000 gram calories or 3.968 Btu —abbreviation Cal — called also large calorie
3. a unit equivalent to the large calorie expressing heat-producing or energy-producing value in food when oxidized in the body
4. an amount of food having an energy-producing value of one large calorie
5. a unit of heat used to indicate the amount of energy that foods will produce in the human body
6. a unit for measuring heat equal to the amount of heat required to raise the temperature of one gram of water one degree Celsius
7. a unit of heat used to indicate the amount of energy foods produce in the human body that is equal to 1000 calories
8. the amount of heat required to raise the temperature of one kilogram of water one degree Celsius that is equal to 1000 gram calories or 3.968 Btu —abbreviation Cal — called also kilocalorie, kilogram calorie, large calorie