分子生物学的新技术使最近的工作成为可能，这种新技术能在环境中检测到低浓度的病毒DNA。
The recent work has been made possible by new techniques of molecular biology that allow viral DNA to be detected at low concentrations in the environment.
极低浓度的钒在肉类中很少见，在坚果中的含量也比在其他植物资源中较少，这很好地证明了吃肉的好处，从而使得饮食也更加均衡。
Very low concentrations of vanadium, which is scarce in meats and somewhat lower in nuts than in other plant resources, are good evidence of meat consumption and thus a better-balanced diet.
肉食性植物能很好地适应低浓度氮，因此这些额外的肥料会使它们的系统负担过重，最终它们会被压垮并死亡。
Carnivorous plants are so finely tuned to low levels of nitrogen that this extra fertilizer is overloading their systems, and they eventually burn themselves out and die.
在某些例子中，即便是低浓度的绿茶都有效果。
In some cases, even a low concentration of green tea was effective.
由于它是作为儿童的主要饮食之一，所以当它被检测出有任何的残留量，即使是稀少的，低浓度的，它也是会受到特别的关注。
While any residues detected have been rare, and of low concentration, milk is of special concern because it is a staple of children \ 's diets.
我们之前在健康不酗酒的人群中选择bmi指数在超重和肥胖之间的，发现一些低浓度的脑部代谢物，这是脑损伤的标志。
We had previously observed lower concentrations of some brain metabolites, markers of brain injury, in healthy non-alcohol dependent people with BMIs in the overweight to obese range.
高浓度中，它可导致显著的急性肺水肿，相反慢性暴露在低浓度中可以导致显著的肺纤维化。
At high concentrations, it can cause significant acute disease with pulmonary edema, whereas chronic exposures at lower concentrations can lead to significant pulmonary fibrosis.
如果稠密的黏液可以被稀释成低浓度的，气管、细支气管和肺中的细毛就都能把它向上推送，咳嗽就不会发生。
If the thick mucus could be diluted into a more WATERY consistency, it would be wafted upward by the tiny hairs in the wind pipe, bronchioles, and the lungs. Coughing would not occur.
较低浓度的尘埃会损坏引擎，却不会当即彻底地影响其运行。
Lower concentrations can damage engines without having an immediate effect on how well they work.
其他方法通常不依赖于特定的反应，这些技术不能很好的区分某些分子或者，在低浓度时的分别率也很低。
Other approaches typically rely on less-specific reactions, Suslick says. Those techniques have a harder time distinguishing among some molecules and nosing out chemicals at low concentrations.
因为葡萄糖是神经元活动的能量来源，所以大脑中的短暂的葡萄糖低浓度水平会向胃发出信号，让人赶快往嘴里塞食物，纵然能量其实只消耗了九牛一毛。
And because glucose fuels the neurons, a transitory low level in the brain may signal the stomach to get the hands to fill up the mouth, even though the energy actually spent has gone up just a hair.
除了指导值之外，空气质量准则也为有关室外空气污染的每项空气污染物提出了过渡目标，以便促进逐渐从高浓度向低浓度过渡。
In addition to guideline values, the AQGs give interim targets related to outdoor air pollution, for each air pollutant, aimed at promoting a gradual shift from high to lower concentrations.
他表示，低浓度是由一系列火山活动储存新的硅酸盐岩石触发的。
The dip, he says, was triggered by a burst of volcanic activity that deposited new silicate rocks.
墨西哥、美国和加拿大承诺将共同合作把墨西哥用于研究的反应堆转化成低浓度铀。
Mexico, the United States and Canada pledged to work together to convert Mexico's research reactor to low enriched uranium.
低浓度对牙齿有益，但浓度过高则可能导致使人衰弱的疾病，比如氟骨症，一些社区因此而成为一片废墟。
Low concentrations are good for teeth, but excessive concentrations can lead to debilitating disease, such as skeletal fluorosis, which has devastated some communities.
不同浓度的钾离子和氯离子一般会致使离子由低浓度的原始细胞向高浓度的转移。
The difference in concentrations of potassium and chloride ions would normally cause ions to move from the less concentrated protocell to the more concentrated one.
在有些地方原文的墨迹只剩下些微印痕，这使得研究它的科学家需要用能识别超低浓度的墨迹的技术。
In places, the ink from the original text is no more than a faint stain, so the scientists studying it need a technique that is sensitive to very low concentrations of ink.
尤其必须立即采取行动，执行有关用伊朗自己提炼的低浓度浓缩铀为德黑兰作研究用的反应堆提供燃料的计划——该反应堆用于生产医用同位素。
In particular, prompt action is needed on implementing the plan to use Iran's own low-enriched uranium to refuel the Tehran research reactor, which is used to produce medical isotopes.
我们故意把这种墨水保持低浓度，并把它置于精确控制的温度下外露于空气中，这样流体上表面破浪地方的黄金颗粒就能得到浓缩。
The ink was kept deliberately thin and exposed to air at a precisely controlled temperature, which concentrated the gold particles at the curved upper surface of the fluid.
平壤的对外发言人在声明中称，实验型轻水反应堆的建设和低浓度铀的提炼取得“飞速进展”。
Pyongyang's foreign ministry said in a statement that the construction of an experimental light-water reactor and low enriched uranium were "progressing apace".
低浓度的煤炭，如亚煤烟煤和褐煤等，其含水量最高可达50%。
Less dense types, such as sub-bituminous and lignite coal, can contain up to 50% water.
而脂肪太多意味着高甘油三酸酯和低浓度脂蛋白，这对你的心脏来说都是坏消息。
Too much of this means higher triglycerides and LDL, both bad news for your heart.
我们得到两点信息，一点来自于物理学,流动是由高浓度到低浓度。
And so we got two bits of information, one that came from physics that said the flow goes from high concentration to smaller concentration.
脱盐水介质中含有低浓度的酸或碱，它们对橡胶有较大的腐蚀性。
Desalting water medium containing low concentration of acid or base, they have more rubber on the corrosion.
长期以来，人们一直怀疑三氯沙和双酚A是否对身体健康有影响，而现在关键的问题是低浓度下的这些物质是否会对人类产生影响。
Both triclosan and BPA have long been suspected of causing health problems, the 100 million dollar question is whether we should worry about the low-level exposure most of us get.
尽管二氧化硫低浓度效应的因果关系尚不确定，但是，降低二氧化硫浓度很可能减少对混合污染物的暴露。
Although the causality of the effects of low concentrations of SO2 is still uncertain, reducing SO2 concentrations is likely to decrease exposure to co-pollutants.
这种物质在极低浓度下(10ppb)就可以发挥作用，因此，你是闻不到这种物质的。
It works at a very low concentration-10 parts per billion-so you can't smell the compound.
得到的人造金刚石只需进行低浓度酸碱处理。
The diamond obtained merely need low concentration acid and alkali handling.
得到的人造金刚石只需进行低浓度酸碱处理。
The diamond obtained merely need low concentration acid and alkali handling.
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