溶液中浓度可以用摩尔每升给出。
而且蜜蜂能觉察到空气中浓度仅万亿分之一单位的特定化学物质。
The bees can detect the target chemicals in the air in concentrations as low as a few parts per trillion.
结果低、中浓度乙醇明显减少损伤的内皮细胞产生的内皮素。
Results Light and moderate concentrations of alcohol significantly decreased ET production.
可以一次进样，同时测定样品中浓度大小相差很大的多种糖份。
Samples with great difference in sugar concentrations thus can be analyzed simultaneously by HTLC after one injetion.
在中浓度煤浆管道输送中，煤的粒度组成偏细，使制浆及脱水费用较高。
The size distribution of coal is considered to be small, when the medium concentration coal slurry is transported in the pipeline. The cost of preparation of slurry and dewatering cost are high.
研究表明，液晶相温度的增加是由铵离子在聚合物链中浓度的增加而引起的。
It indicated that the increase in the phase temperature of the polymers was most likely due to the increase in the content of the ammonium ion of the polymers.
通过对燃烧腔中浓度场分布的模拟为燃烧蒸发器的进一步优化设计提供了理论依据。
Consequently simulations on concentration distributions in the combustion chamber provided a guidance for further improvement.
早产儿保育器中的早产婴儿呼吸浓度大于空气中浓度的氧会导致不可逆转的视力损害。
Premature infants placed in incubators to breathe oxygen in concentrations greater than in air can develop irreversible eye damage.
分析中浓度碎浆机的碎浆原理及碎浆机转子运转时对浆料湍流状态、碎浆能量分布的影响。
The pulping principle of medium concentration pulper, as well as the effect of working rotor on the status of slurry turbulence and the distribution of pulping energy, were analyzed.
组织研究显示使用联合治疗肿瘤生长更缓慢，更少侵犯邻近组织和在新生成的血管中浓度更低。
Tissue studies showed that, under the combination therapy, tumors grew more slowly and less invasively and showed a lower density of newly formed blood vessels.
滴苗处理中浓度和时间是影响四倍体诱变效果的关键因素，涂抹处理中浓度是诱变率高低的关键。
The mutation effect of tetraploid were increased with the increasing of concentrations and the prolongation of treatment time in dropping seeding.
种群丰富度系数分析结果表明，高、中浓度乙草胺处理可使土壤可培养真菌种群丰富度不可逆地降低。
The richness of culturable fungi in soil treated by medium and high concentration acetochlor was decreased irreversibly.
傍晚前后往往是一天中浓度最低的时段。PM10的空间分布与源排放关系密切，中午前后的空间分布会体现出光化学反应对其二次生成作用的影响。
The spatial distribution of PM10 has close relation to the source emission and is affected by the secondary aerosol production from photochemical reactions around noon.
溶液中的盐份富集在聚合物分子的带电基团附近，并形成盐浓度梯度分布。
Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient.
从后来的任务中得到的数据显示，在两极地下不到一米的地方有浓度相当高的氢，由此推断是水。
Data from a later mission indicates significant concentrations of hydrogen and by inference water less than a meter underground at both poles.
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.
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。
They can thrive in soil with high concentrations of metals that are toxic to most other plants.
通过研究这些成分，科学家们获得了气候的许多方面的详细档案，包括空气温度、降雪和大气中温室气体的浓度。
By studying these components, scientists have obtained a detailed archive of many aspects of climate, including air temperatures, snowfall, and concentrations of greenhouses gases in the atmosphere.
许多神经递质首先通过增加靶神经元中的循环AMP浓度来发挥其作用。
A number of neurotransmitters exert their effects by first increasing cyclic AMP concentrations in target neurons.
铱存在于陨石和火山物质中，但在火山物质中同时包含高浓度的镍和铬。
Iridium occurs in meteorites and volcanic material, but in the latter case it is accompanied by elevated levels of nickel and chromium.
建立一种方法测定人血浆中喹那普利及其代谢产物喹那普利拉的浓度。
Establish a method for the determination of quinapril and its active metabolite quinaprilat in human plasma.
随着人类活动增加，温室气体在大气层中的浓度超过了自然状态，过多热量被保存。
As human activity increases the concentration of these gases in the atmosphere far beyond their natural levels, much more heat is trapped.
虽然在地球大气层中的浓度甚微，一氧化二氮是一种很强的温室气体，而且正成为破坏平流层臭氧的主因。
Although present in minute concentrations in Earth's atmosphere, nitrous oxide is a highly potent greenhouse gas and is becoming a keyfactor in stratospheric ozone destruction.
在极端情况下，如果过量饮水可以导致你血液中钠的浓度过低，从而丧命。
In extreme cases, excessive water consumption can even be fatal, if it causes your blood concentration of sodium to fall too low.
在极端情况下，如果过量饮水可以导致你血液中钠的浓度过低，从而丧命。
In extreme cases, excessive water consumption can even be fatal, if it causes your blood concentration of sodium to fall too low.
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