One way to tell is by measuring the bones of their forelimbs.
一种判断的方法是测量它们前肢的骨头。
The AU is a cosmic measuring rod, and the basis of how we scale the Universe today.
天文单位是宇宙的标尺，是我们今天测量宇宙的基础。
The method relies on measuring how chemical variations in drinking water show up in people's hair.
这种方法的依据是测量饮用水中的化学物质在人的头发中的变化。
Measuring emissions is not a precise science, particularly when it comes to issues surrounding land use.
测量排放并不是一门精确的科学，尤其是涉及到土地使用的问题。
Measuring emissions is not a precise science, particularly when it comes to issuing surrounding land use.
对排放量的测量并不是一门精确的科学，尤其是涉及到土地使用问题时。
The company has been committed to providing customers with high-quality measuring instruments and cutting tools.
本公司一直致力于为用户提供高质量的测量仪器和切削工具。
Developed a half-century ago, GNP helped establish a common way among countries of measuring the change in economic output.
国民生产总值是半个世纪前制定的，帮助各国建立了衡量经济产出变化的统一方式。
Cambridge scientist Peter Wadhams, who's been measuring and monitoring the Arctic since 1971, says the decline is irreversible.
剑桥科学家彼得·沃德姆斯自1971年以来一直在测量和监测北极，他说这种减少是不可逆转的。
Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.
其他科学家已经提议，要利用这个网络体系来追踪洋流，测量海洋和全球温度的变化。
Discovering the inputs and outputs of rivers is a matter of measuring the discharges of every inflowing and outflowing stream and river.
发现河流的输入和输出，就是测量每一条流入和流出的河流的流量。
Examinations are probably a poor instrument for measuring the quality of education because they concentrate on grades instead of abilities.
考试可能不是一个衡量教育质量的好方法，因为考试更看重成绩而不是能力。
By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
Radiocarbon dating had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
放射性碳年代测定法涉及到了化学分析，与文物中残留的有机物成分所释放的放射性碳的含量测定有关。
By measuring the time required for a signal to travel between the satellites and the antenna, the car's location can be pinned down within 100 meters.
通过测量信号在卫星和天线之间传播所需的时间，汽车的位置可以被锁定在100米误差之内。
While Lombroso was measuring criminals, a Belgian palaeontologist called Louis Dollo was studying fossil records and coming to the opposite conclusion.
当隆布罗索在衡量罪犯时，一位名叫路易斯·多洛的比利时古生物学家正在研究化石记录，并得出了相反的结论。
TEMs work by firing a beam of electrons through the material and measuring how it absorbs and deflects the particles to build up an image of the sample.
TEMs 的工作原理是通过发射一束电子穿过某种物质，并测量它如何吸收和偏转粒子来建立样本的图像。
Birds store energy as subcutaneous fat deposits or "body reserves"; changes in these reserves can be reliably estimated by measuring changes in body mass.
鸟类以皮下脂肪沉积或“身体储备”的形式储存能量；通过测量体重的变化，可以可靠地估计这些储备的变化。
The method will not only be used for measuring the two wheel alignment parameters but also help mechanician to adjust the auto wheel parameters effectively.
该方法不仅可用于测量两轮对中参数，而且有助于机械工对车轮参数的有效调整。
Finally, younger ecologists have found ecological problems involving behavior and life-history adaptations more attractive than measuring physical constants.
最后，年轻一代的生态学家发现，涉及行为和生活史适应的生态问题比测量物理常量更有吸引力。
Now, Laser Spectroscopy, which is the focus of your assignment, works by measuring very precisely what parts of the spectrum are absorbed by different substances.
现在来说说激光光谱学，这是你们作业的重点，激光光谱学可以非常精确地测量光谱的哪些部分被不同物质吸收。
And when experimenters record the time it takes game players to read "aggressive" or "non-aggressive" words from a list, can we be sure what they are actually measuring?
当实验者记录下游戏玩家从列表中阅读“攻击性”或“非攻击性”词汇所花的时间时，我们能确定他们实际上在测量什么吗？
So what Kennedy was referring to was that while GDP has been the most common method for measuring the economic activity of nations, as a measure, it is no longer enough.
因此，肯尼迪所指的是，虽然GDP 是衡量国家经济活动最常用的方法，但作为一种衡量标准，它已经不够合理了。
Engineer Glen Dash says his team used a new measuring approach that involved finding any surviving remnants of the casing in order to determine where the original edge was.
工程师格伦·达什说，他的团队使用了一种新的测量方法，包括寻找任何幸存下来的外壳残余物，以确认金字塔最初的边界位置。
These kinds of watches are used in sleep studies as a way of measuring how long people are sleeping, how efficient the sleep is, and whether they are waking up in the night.
这些类型的手表在睡眠研究中被用来测量人们的睡眠时长、睡眠效率，以及他们是否在夜间醒来。
An astronomer might spend only a week or so each year observing at the telescope and the rest of the time measuring or analyzing the data acquired from large projects or surveys.
天文学家每年可能只花一周左右的时间用望远镜进行观察，其余时间用来测量或分析大型项目或调查中获得的数据。
Note the word "net" measuring the actual amounts of groundwater seepage into the lake and out of the lake is a much more complicated matter than merely inferring their difference.
注意“净值”这一词：测量地下水渗入并且渗出湖水的实际水量比仅仅推断出它们的差异要复杂得多。
Note the word "net": measuring the actual amounts of groundwater seepage into the lake and out of the lake is a much more complicated matter than merely inferring their difference.
注意“净”这个词：测量渗入湖泊和流出湖泊的地下水的实际数量是一个比仅仅推断它们之间的差异要复杂得多的问题。
When we analyze pedodiversity within an area, we are measuring how much variability there is in soil properties and how many different types of soil there are in a particular area.
当我们分析某个地区内的土壤多样性时，我们是在测量土壤属性的可变性，以及在某个特定地区有多少不同的土壤类型。
The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
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