Sculptures must, for example, be stable, which requires an understanding of the properties of mass, weight distribution, and stress.
例如，雕塑必须是稳定的，这就需要理解质量、重量分布和压力的特性。
I had gained weight in the form of muscle mass, but thinking only of lowering the number on the scale, I altered my training program.
肌肉量增大，我的体重就增加了，但因为只想着降低体重称上的数字，我改变了训练计划。
It is a mathematically sophisticated comparison of the actual brain weight of an animal compared to the expected brain mass for that animal's body size.
这是一个数学上的复杂的比照，它把动物实际的脑重量与按照动物身体尺寸所预期的脑重量比较。
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。
Using about 20 years of height and weight data (to determine body mass index) from two large national surveys for the U.S. and the U.K., researchers made forecasts.In the U.S.
通过20年两次的对美英两国国人身高和体重数据（决定了身体重量的指数）的调查，研究人员做出了这样的预测。
Doctors often assess a patient's risk of coronary artery disease by looking at their body mass index - a measure that takes into account someone's weight and height.
医生通常会评估身体质量以测量病人罹患换冠心病的风险，这样的一种测量方法需要参考病人的体重和身高。
There are no obvious barriers to the mass production of electric tractors and combine harvesters: the weight of the batteries and an electric vehicle's low-end torque are both advantages for tractors.
大规模生产电动拖拉机及联合收割机不存在任何明显的障碍：电池重量轻和电动车的低端扭矩突出都是拖拉机的优势。
The amount of angular momentum, say, a spinning skater has depends on both the speed of rotation, and the weight and distribution of mass around the center.
角动量的大小，取决于旋转中的滑冰选手的旋转速度、体重和绕旋转中心的质量分布。
In today's Audi's the engine hangs in front of the front axle, and obviously bringing the engine back will help with mass centralization and front-rear weight balance.
在今天的奥迪车上，发动机装在前轴前端，而把发动机后置显然会有助于大规模集中和前后轴重量分配平衡。
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。
We found that food insecurity is associated with a higher body mass index, greater weight gain during pregnancy, and a higher risk for the development of gestational diabetes.
我们发现如果孕期食物无保障，孕妇的体重指数会偏高，体重增加更多，同时患妊娠期糖尿病的风险更高。
The rest of the weight was fat-free body mass, which includes other components such as water or muscle, and is generally not the target of those seeking to lose weight.
其余重量都是无脂身体质量，包括身体的其他组成成分，如水或肌肉，而通常这不是减肥的目标。
The participants lost about 2.5% of their initial weight and 4% of their initial fat mass.
试验者损失了大约2.5 %的初始重量和4 %的初始脂肪块。
Because this would correspond to the mass element telling us how to weight the various points of our region.
相应的质量微元，就告诉了我们，区域点的权重。
And then we would divide by the total weight, which is the mass of a region, as defined up there.
然后除以总质量，也就是区域的质量，正如定义所说的那样。
It was only the mice that changed their eating times that gained weight, taking on a body mass gain of about 50 percent more than their standard light-dark cycle counterparts.
那些改变进食次数的老鼠，与在正常日夜循环的环境下的老鼠，体重增加的比率多了50%。
Obesity involves a measure of weight in relation to height and is defined as having a body mass index that is 30 or higher.
当体重/身高指数达到30或以上时，即被认为肥胖。
They found that students who bought their own cars had a higher average body mass index (BMI, a measure of weight in relation to height) other than people who got help from their parents.
他们发现自己买车的学生相比起其他得到父母帮助买车的学生，平均BMI (bodymassindex，身体质量系数，和身高体重有关)要高。
Just a 10 percent increase in body mass index, a measure of weight relative to height, can cut a man's real earnings by 3.3 percent and a woman's by 1.8 percent, according to economists.
据经济学家介绍，体重指数(测量体重与身高比例的指标)上升10%，男性的实际收入就会下降3.3%，女性则会下降1.8%。
A body mass index (BMI, your weight in kilograms divided by the square of your height in metres) of around 24 is good.
人体体重指数在大概24为好(用体重除以高度的平方就得出体重指数，体重单位为千克，高度单位为米)。
In one study of oral contraceptive pills, women with a body mass index (BMI) in the overweight range (a BMI of 25 or more) had a higher risk of pregnancy than those in the normal weight range.
有一项针对口服避孕药片开展的研究发现，体重指数(BMI)达到超重范围(BM I值等于或大于25)的女性比体重指数正常的女性更容易怀孕。
In addition to the other heart health benefits of blueberries, those fed the low-fat blueberry diet also lost body weight and fat mass compared to those on the high-fat diet.
蓝莓除了给心脏健康带来的好处外，这些喂养以低脂肪和蓝莓的饮食失去的体重和脂肪量比喂养高脂肪食物多得多。
Those with excessive body-mass-index measurements tend to have other medical conditions related to weight that may put them at risk of suffering more severe infection with H1N1.
那些身体质量指数超标的人，通常有与超重有关的其他疾病，而超重可能使他们有更大感染甲型h1n1病毒的风险。
Weight training increases lean muscle mass, which raises the amount of calories your body USES, even when you're at rest.
举重训练能够增大肌肉量，从而使身体需要更多的卡路里，即使是在休息的时候。
Your baby will gain a good deal of weight this week as her body fills out with muscle bone mass fat and organ tissue.
婴儿这周会增重很多，因为她的身体正填充着肌肉、骨质、脂肪和器官组织。
Your baby will gain a good deal of weight this week as her body fills out with muscle, bone mass, fat and organ tissue.
婴儿这周会增重很多，因为她的身体正填充着肌肉、骨质、脂肪和器官组织。
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。
Using light as an external power source can alleviate the weight and mass of having an onboard system, leaving room for scientific payloads, for example, and it provides more propulsive power.
利用光束作为外部能量源可以减轻火箭自身携带的系统重量和质量，为科学研究扩大有效载荷空间，并提供更大的推力。
Using light as an external power source can alleviate the weight and mass of having an onboard system, leaving room for scientific payloads, for example, and it provides more propulsive power.
利用光束作为外部能量源可以减轻火箭自身携带的系统重量和质量，为科学研究扩大有效载荷空间，并提供更大的推力。
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