a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food 同义词：Calorie, kilogram calorie, large calorie, nutritionist''s calorie,
例句与用法
1.
The unit of heat we shall use most frequently is the kilocalorie . 我们最常用的热量单位是千卡。
On the other hand , the energy content of food is often expressed in " kilocalorie " which is equivalent to 1 000 calories 食物提供的热量则多以千卡计算(一个千卡相等于1000个卡路里) 。
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