Ir is found in high concentrations in some meteorites, in which the solar system's original chemical composition is preserved.
人们发现，在一些保存着太阳系原始化学成分的陨石中，铱元素的含量很高。
In high concentrations, QACs kill bacteria.
在较高浓度下，季铵盐化合物能杀灭细菌。
Carbon dioxide in high concentrations is toxic to humans.
高浓度二氧化碳对人体有毒。
In high concentrations, carbon monoxide can harm human health by reducing oxygen to the heart and brain.
高浓度下，通过减少心脏和大脑中的氧气，一氧化碳会危害人体健康。
It is true that some of these foods in high concentrations and under specific conditions may cause kidney stones.
的确，有一些食物在高浓度、特定的条件下会诱发肾结石。
HF inhaled in high concentrations may cause glottitis (obstruction of the airway) and acute pulmonary edema.
吸入高浓度HF会导致喉道阻塞和急性肺水肿。
Beet roots contain high concentrations of nitrates, which are converted into nitrites by bacteria in the mouth.
甜菜根包含高浓度的硝酸盐，它可被口腔内细菌转化为亚硝酸盐。
Such fuels would be more versatile than ethanol, which can't be used in high concentrations in ordinary engines.
这些可再生能源将要比乙醇更具有通用性，因为在普通发动机中并不能使用高浓度的乙醇。
In high concentrations, preparations have shown to inhibit cells from acute lymphocytic and acute granulocytic leukemia.
在高浓度，筹备工作已经表明，以抑制急性淋巴细胞白血病和急性粒细胞白血病细胞。
Lactobacillus Acidophilus: a healthy bacteria found in high concentrations in Kefir and Yogurt, also known as a Probiotic.
乳酸菌：在酸牛奶和酸奶高浓度发现，健康的细菌，也被称为益生菌。
Moreover, he doubts the value of one or more probiotic bacteria that even in high concentrations only inhibit 30 to 50 percent of the virus.
他还怀疑一种或多种益生菌的价值，即使是高浓度也只能抑制30%到50%的病毒。
Sugars in low concentrations are detected by mass detector, while those in high concentrations are detected by differential reflective index detector.
以质量检测器测定浓度小的糖份，以示差折射率检测器测定浓度大的糖份。
Ascorbic acid is found in high concentrations in adrenal and brain tissue and plays an important role in neurotransmitter and steroid hormone synthesis.
抗坏血酸发现在肾上腺和脑组织和神经递质扮演一个重要的作用，类固醇激素合成高浓度。
Untreated petrochemical wastewaters are harmful to the environment since they typically contain many toxic and persistent organic pollutants in high concentrations.
石油化工废水组成复杂、 浓度高、毒性强和难降解，对环境危害大。
Using techniques similar to those involved in DNA fingerprinting, they then looked for the presence of antibiotic-resistant genes - and found these in high concentrations.
他们运用类似DNA指纹识别的技术，寻找抗药性的基因的存在，并在高浓度季铵盐存在下找到了它们。
People with chronic respiratory conditions like asthma, emphysema or bronchitis may be more susceptible to irritation if ash is in the lower atmosphere in high concentrations.
如果火山灰在底层空气中高浓度聚集，那些患有哮喘、肺气肿或者支气管炎等慢性呼吸道疾病人更容易受刺激。
Water-soluble nutrient concentrations in runoff of phosphorus, potassium and bromine ions in the beginning minutes of runoff, runoff in high concentrations, followed by rapid decay.
径流中养分浓度水溶性磷、钾离子和溴离子在开始产流几分钟内，径流浓度很高，随后迅速衰减。
They can thrive in soil with high concentrations of metals that are toxic to most other plants.
它们能在含有对大多数其他植物有毒的高浓度金属的土壤中茁壮成长。
Many are found in tropical and subtropical areas of the world, where the accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
许多超富集植物被发现于热带地区和亚热带地区，在那里，高浓度金属元素的积累可以为植物提供保护来对抗以植物为食的昆虫和细菌病原体。
High concentrations of many of these chemicals are found in secondhand smoke.
研究发现二手烟中含有高浓度的上述有害物质。
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.
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。
"Most often, the ingredients lower down on the list aren't present in high-enough concentrations to have any impact on the shampoo's performance," Begoun says.
“多数情况下，排名靠后的成分由于没有足够的浓度，不会对洗发水的功效产生影响。”贝岗说道。
Many scientists, as reported in the Guardian last week, fear that concentrations of CO2 in the atmosphere are already high enough to ensure a mass extinction of coral in the coming decades.
正如《卫报》于上周的一份报道说，许多科学家担心，二氧化碳在大气层中的浓度已经高得足以在未来数十年内保证出现珊瑚大灭绝。
If plants grow in Chambers with high concentrations of CO2, yields rise a lot (which is why tomato farmers and others use CO2 in their greenhouses).
如果在室内种植作物，高浓度的二氧化碳会极大地提高产量(这就解释了为什么西红柿种植户和其他人在温室里使用二氧化碳)。
In both cases, high concentrations of the gas are dark, while low concentrations are light.
在两幅图中，气体密度越高的区域颜色也就越深，低密度区则更浅。
Teas are also useful for herbs that don \ 't require high concentrations of active principles in order to be effective.
这些茶叶也经常对那些不需要很高浓度才发挥作用的草药很有利用价值。
A map of Europe measuring the number of patent applications shows a similar pattern - with high concentrations in pockets of England, France, Germany and Finland.
一张计算欧洲专利数量的地图说明了相似的情况-专利主要集中在英国，法国，德国和芬兰。
The CAA added a 60 nautical-mile buffer zone imposed around high concentrations of ash in the skies was now close to Edinburgh, Carlisle, Blackpool, Liverpool and Manchester airports.
民航局继续说，大气层中围绕着火山灰的一个60海里左右的缓冲区域现在已靠近了爱丁堡、喀来耳、布莱克浦、利物浦和曼彻斯特机场。
The scans showed increased blood flow in areas of the brain with high concentrations of receptors for dopamine — associated with states of euphoria, craving and addiction.
扫描显示，大脑中多巴胺(与愉悦的心境，渴望和成瘾有关)受体密集区的血流增加。
The scans showed increased blood flow in areas of the brain with high concentrations of receptors for dopamine — associated with states of euphoria, craving and addiction.
扫描显示，大脑中多巴胺(与愉悦的心境，渴望和成瘾有关)受体密集区的血流增加。
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