我们通过化学分析知道矿物的构成。
We know the constitution of mineral through chemical analysis.
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。
Radiocarbon dating had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
对无脊椎动物猎物的化学分析显示，不同物种之间的营养成分存在显著差异；即使在种内，营养成分也可能有很大的差异。
Chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably.
但当我们用化学方法分析这些细胞时，我们发现了一些非常有趣的东西，其中有一种化学物质，是一种叫做端粒酶的酶。
But when we analyze these cells chemically, we find something very interesting, a chemical in them, an enzyme called telomerase.
当你分析这些光的时候，你可以计算出它们与地球的距离，并确定它们由什么构成，查明它们的化学成分。
When you analyze this light, you can figure out their distance from the Earth, and identify what they are made of, determine their chemical composition.
这两位化学家都非常有远见，他们对周期性的物理性质和化学性质进行分析，并在预示应该出现新元素的地方留下了空位。
Both chemists were sufficiently farsighted to leave gaps where their analyses of periodic physical and chemical properties indicated that new elements should be located.
最近的化学分析已确定它们所包含的蓝色荧光物质是邻氨基苯甲酸的糖基化形式。
Recent chemical analysis has identified the blue fluorescent material they contain as a glycosylated form of anthranilic acid.
用四极质量分析仪对碳化硅颗粒表面吸收的气体进行了分析，获得了碳化硅颗粒的表面化学成分。
The gases absorbed on the surface of SiC particles are analyzed with the quadripole mass analyzer.
研究人员对这些遗留下来的物品做了化学和分析，发现弓箭手很有可能来自于现在的瑞士。
Researchers did chemical analysis of the remains and found that the archer most likely came from what is now Switzerland.
科学家们希望通过进一步分析这块陨石能了解其化学演变，并为我们宇宙的化学制出一条时间轴。
By further analyzing the meteorite, researchers hope to understand its chemical evolution and create a timeline of the chemistry of our universe.
虽然空气污染和化学物质被确认为是主要的威胁，但我们的分析认定，旅游业也是一个无声的杀手。
While air pollution and chemicals are believed to pose a major threat, our analysis determined that tourism served as the silent killer.
这些淀粉类食物的化学分析显示面条和糕点都由普通的小米磨制烹制而成的。
Chemical analysis of the starches revealed that both the noodles and cakes were made of common millet.
这些研究者忘记提及的是，呼吸并不是适用于化学分析的唯一生物气味来源。
What the researchersdelicately forget to mention is that the breath is not the only source ofbiological aromas suitable for chemical analysis.
对玻璃管中和蜜蜂身体上的混合物进行的分析为这些物质的存在和有关它们的化学成份的信息提供了首次证据。
Analysis of the compounds in the tubes and on the bees' bodies provided some of the first-ever evidence about the presence of these compounds plus information about their chemical makeup.
对二恶英进行化学量化分析需要非常先进的方法，世界上只有数量有限的几个实验室能够做到。
The quantitative chemical analysis of dioxins requires sophisticated methods that are available only in a limited number of laboratories around the world.
得到31英尺长的岩芯样本后，再分析它们的化学性质和磁性。
The 31-foot-long core samples are analyzed for their chemical and magnetic properties.
如他们本周在于华盛顿举行的美国化学学会会议上介绍的那样，他们已开始分析尸体的气味，目标是机器能自动操作侦测过程。
As they outlined to this week's meeting of the American Chemical Society, in Washington, DC, they have been analysing the smell of corpses, with a view to automating the process of detecting them.
如果筛选检测呈阳性，就必须通过更加复杂的化学分析来确认结果。
In case of a positive screening test, confirmation of results must be carried out via more complex chemical analysis.
能够进行准确的微量分析才算得上精细，而化学意义上的最小量无疑就是单一的原子。
Finesse comes from the ability to analyse small quantities accurately. And the smallest possible quantity in chemistry is, of course, a single atom.
ANSA的基本前提是，对于计算机系统的分析应该像研究物理和化学系统一样严格对待。
ANSA's basic premise is that the analysis of computer systems should be treated with the same rigor as the study of physical or chemical systems.
通过多种化学分析技术，科学家在80个样本中发现了一系列阻燃剂。
Using a variety of chemical analysis techniques, the researchers found a suite of flame-retardants in 80 of the samples.
为揭露这一化学反应之秘密，科学家们需要借助一组工具进行分析。
Uncovering the secrets of the chemical reaction required the scientists to use an array of analytical tools.
分析检测到了4 -甲基甾烷——经常由被称为鞭毛藻微小藻类产生的化学物质。
This analysis detected 4-methyl steranes-chemicals often made by tiny algae known as dinoflagellates.
对地下水样进行基础地质和地球化学方面的分析，有助于预测地下水微量元素的迁移。
Basic geology and geochemistry of water samples helps to predict occurrence of trace elements in groundwater.
动物世界里，很多无声的交流是通过那些携带信息的挥发性化学物质完成的，这其中有很多可以通过化学分析残留物的方法识别出来。
A lot of communication in the animal world occurs via volatile, information-carrying "scent" chemicals, many of which remain to be chemically identified.
反射光线立刻被机器人分析并说出物品的化学成分。
The reflected light is then analyzed in real time(10) to determine the object's chemical composition.
反射光线立刻被机器人分析并说出物品的化学成分。
The reflected light is then analyzed in real time(10) to determine the object's chemical composition.
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