当志愿者睡的时间长时,将近一半的减去体重(1.4千克)来自脂肪,而对于那些睡眠不足6小时的志愿者,不到五分之一(0.6千克)来自脂肪。
Nearly half of that (1.4 kg) was from fat when the volunteers were sleeping long, but less than a fifth (0.6 kg) of the lost weight was from fat when they got less than six hours of sleep.
Trulite公司赢得该项合同以便为海军开发一个系统,该系统允许在一个小包装中有充实的动力容量,同时氢储存能力大于每千克200 0瓦特时。
Trulite won this contract to develop a system for the Navy that allows for substantial power capacity in a small package, with hydrogen storage capabilities greater than 2000 watt-hours per kilogram.
根据统计数据,如果我们每天把开电视的时间减少一小时,则每个月可以减少4 . 17千克的碳排放量。
According to statistics, if we can decrease the time for having the television on by one hour each day, we can deduce the amount of carbon emission by 4.71 kilogram each month.
Occasionally, you'll find you need to cancel out units, because, of course, you're always doing unit analysis as you solve your problems, and sometimes you'll need to convert joules to kilogram meters square per second squared.
偶然地,你会发现需要消除单位,因为在解题时,经常要做单位分析,所以有时候需要把,焦耳换做,一千克乘以米的平方除以秒的平方。
A typical problem that you may have done in your first pass at Newton's law, someone tells you a force of 36 Newtons is acting on a mass of whatever, 4 kilograms; what's the acceleration?
在你们第一次接触牛顿定律时,可能见过这么一道典型题目,告诉你,一个 36 牛的力,作用在一个物体上,4 千克吧,问加速度是多少
A kilocalorie, and this is really what we--when people talk about calories, how many calories in food, it's really kilocalories that they're referring to, but that would be the energy required to raise a kilogram of water one degree centigrade.
一千卡,是人们讨论卡路时是真正用的单位,当提起食物中的热量,人们指的是多少千卡,一千卡,是将一千克水提升1℃所需要的热量
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