As a body shares more than 50% of the mass of a whole car, it is particularly important to reduce mass of body.
就整车质量而言，车身占其总质量的50%以上，因而减轻车身质量尤为重要。
When a large body strikes a planet or moon, material is ejected, thereby creating a hole in the planet and a local deficit of mass.
当一个大型天体撞击行星或月球时，物质会被抛射出去，从而在行星上形成一个洞，造成局部质量不足的现象。
The increased metabolic cost of possessing higher body mass contributes to the increased overnight mass loss.
更大的体重意味着代谢成本增加，导致了夜间体重损失增加。
The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.
动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。
To obtain empirical data regarding the energy costs of singing, Thomas examined the relationship between song rate and overnight changes in body mass of male nightingales.
为了获得有关唱歌能量消耗的经验数据，托马斯研究了鸣声率与雄性夜莺在夜间的体重变化之间的关系。
Under the law, using a fashion model that does not meet a government-defined index of body mass could result in a 85000 fine and six months in prison.
根据这项法律，聘用体重指数不符合政府规定的时装模特可能会被罚款8.5万，并被判入狱6个月。
Under the law, using a fashion model that does not meet a government-defined index of body mass could result in a $85,000 fine and six months in prison.
根据这项法律，聘用体重指数不符合政府规定的时装模特可能会被罚款8.5万美元，并判6个月监禁。
他浑身伤痛。
Excessively skinny models have been a point of controversy for decades, and two researchers say a model's body mass should be a workplace health and safety issue.
几十年来，过瘦的模特一直是争议的焦点，两名研究人员表示，模特的体重应该是职场的健康和安全问题。
In a study of 33 years of trends in Body Mass Index across 200 countries, the scientists found that people worldwide are getting heavier and that most of the rise is due to gains in BMI in rural areas.
在一项对200个国家33年内体重指数趋势的研究中，科学家们发现，世界各地的人们体重越来越重，而这主要是由于农村地区体重指数的增加。
Likewise, the availability of indicators for body mass index and skinfold thickness are particularly useful for monitoring the growing epidemic of childhood obesity.
同样，身体质量指数指标的可用性和皮肤褶厚度则特别有助于监测日益流行的儿童期肥胖。
Obesity is calculated using the Body Mass Index (BMI), a ratio of weight in comparison to height.
肥胖程度是以身体质量指数(BMI)来衡量的，身体质量指数即体重与身高的比。
But the risk is higher for women with a body mass index (BMI) of 30 or above.
但是对于那些腹中婴儿身体质量指数在30或以上的妇女，她们就有很高的风险。
Being at the lower end of the healthy Body Mass Index range (which is between 18.5 and 24.9) also offers protection against diabetes and heart disease.
处于健康身体指数范围(在18.5到24.9之间)的末端也能预防糖尿病和心脏病。
I have a body mass index of around 34 and wear a size 18-20 (UK), so I've certainly heard both before.
我的身体质量指数34左右，衣服尺寸为18 - 20(英国制)，可想而知，胖子或者肥胖者的称呼，我都有所耳闻。
In 1996, WHO set up a global database on obesity and body mass index, the common measure of fatness.
1996年，世界卫生组织建立了一个肥胖和身体质量指数数据库，身体质量指数是衡量肥胖的通行标准。
Based on around 20 years of historic data, the study says that by 2030 as many as 48% of British men could be obese - having a body mass index of more than 30 - as against 26% now.
基于大约20年的历史数据，研究表明，到2030年将有多达48%的英国男性会肥胖——身体质量指数超过30——相对于现在的26%来说。
But several demographic studies have shown that even women just considered "overweight," with a body mass index of 25-30, may also be at increased risk of contraceptive failure.
然而一些人口研究的结果显示，那些身体质量指数超过25，不到30的女性也存在不断增加的避孕风险。
She has a body mass index (BMI) of 20—in the normal range, according to the Centers for Disease Control.
其身体质量指数是20，根据疾病控制中心数据显示，完全符合标准。
Then determine your body mass index (BMI) - an indicator of your percentage of body fat - through a BMI table or online calculator.
然后通过体重指数表或在线进行计算确定你的体重指数(一种关于身体脂肪比例的指标)。
BMI, or body mass index, is a ratio of weight to height.
身体质量指数，是体重和身高的比例。
The insects generally produced less methane, nitrous oxide and ammonia both per unit of body mass and per unit of mass gained than pigs or cattle.
通常情况下，同猪和牛相比，每单位体重或增加每单位体重，昆虫产生更少的甲烷、一氧化氮和氨气。
The gluttony changes fat mass – the percentage of fat in the body – for more than two years making it harder to keep weight off.
暴饮暴食会改变脂肪量——身体所含脂肪的百分比——两年有余脂肪量都无法回到正常水平。
The human brain accounts for roughly 2% of the total mass of the human body, yet it consumes over 20% of the oxygen and nutrients the human body intakes.
人类大脑重量大致占身体总重量的2%，然而却消耗超过20%的人身体所吸收的氧气和营养。
Before being weaned at about three weeks, newborn seals grow to nearly 300 pounds (136 kilograms), while their nursing mothers lose up to a third of their body mass.
幼崽断奶后三个星期，就能长到大约300磅重(136千克)，而它妈妈的体重却会下降三分之一。
The researchers calculated that every extra point of body mass index (BMI – your weight in kilograms divided by the square of your height in metres) led to a 1-point drop in the memory test.
研究人员计算出在记忆测试里她们每超过一个身体质量系数（BMI——身高kg/体重m的平方）值，她们的记忆力就下降一个单位。
Obese future: 48% of UK men could have a body mass index of more than 30 by 2030.
肥胖未来：2030年48%的英国男性身体重量指数超过30。
More than 26 percent of Americans are obese, defined as having a body mass index of 30 or higher.
超过26%的美国人肥胖，这是指身体体重指数BMI大于30的人。
Larger animals tend to use less energy per gram of body mass than smaller ones do, even at rest.
体型大的动物单位体重消耗的热量比体型小的动物更少，甚至在休息时也是如此。
Did you know that the brain only weighs 2% of body mass but consumes over 20% of the oxygen and nutrients we intake?
你是否知道大脑仅占身体总重的2%却要消耗我们摄入的氧气和营养的20%以上？
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