But occasionally there is this one little remnant of the old CGS system, centimeters-gram-second, and this is one.
但是也有些例外,在原来的厘米克秒制中,还有我们说的这个。
Protein and carbohydrate have 4 calories per gram, per unit weight.
每克蛋白质或碳水化合物产生4卡
So if you can make 100 tons of the drug but it costs $100,000 a gram that might not be a useful drug because nobody could afford to use it.
虽然你能制造一百吨药,但每克药得十万美元,这药就没什么用,因为没人能用得起它
Gram for gram it provides a lot more punch in terms of calories than protein or carbohydrate, and that could be why fat has such an appeal to human physiology and why people like high fat foods.
每克脂肪比蛋白质或碳水化合物,提供更多卡路里的热量,这是人类身体对脂肪如此渴求的原因,人们为什么如此喜欢高脂食物
Well a calorie technically--and this is again, not something that we would ever quiz you on but I just thought you might be interested to know-- that it's the energy required to raise one gram of water one degree centigrade, and we'll talk in a minute about you might go about measuring that.
理论上一卡路里,我重复下,这不是考试内容,但我想你们会感兴趣,一卡路里,是将一克水提升1℃所需要的热量,过会儿我们会讲如何测量
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