化学污染物的数量已经急剧上升。
The quantity of chemical pollutants has increased exponentially.
科学家推测，一个人大脑释放的这些化学物质的数量多少很可能表明这个人对他或她的医生有多大的信心。
Scientists theorized that the amount of these chemicals released by a person's brain quite possibly indicates how much faith the person has in his or her doctor.
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.
今天这些生产杀虫剂、除草剂和杀真菌剂的工厂生产的产品数量更多，化学复杂性也越高。
Today's Arsenal of insecticides, herbicides, and fungicides is staggering in number and chemical complexity.
但是，我们可以做得更好，限制这些化学品进到游泳池去的数量。
But we could do a much better job of limiting the amount of these chemicals that go into pools.
该协会没有全部列出这22家公司的名称，但这22家公司正好是被查出产品含有过量有毒化学物的公司数量。
The association did not name all 22 companies, but 22 is the same number of manufacturers whose milk products were found to have contained excessive toxic chemical.
研究者发现高水平化学品暴露时，例如制造或使用某种化学品的工人，往往因样本数量太少而无法得到可靠结果。
When researchers can find high levels of exposure-for example, workers in factories that make or use the chemical-the number of subjects is often too small to yield reliable results.
一些传统工艺，比如洗毛、鞣革、漂白、染色、印花面料等，要使用大量的水、能源或有毒化学品，并且其排放污水的数量也是惊人的。
Some conventional processes such as scouring wool, tanning leather and bleaching, dyeing and printing fabrics use large amounts of water, energy or toxic chemicals, and emit effluents.
当这些释放不同化学信号的牛被转移到其它地方时，整个牛群中蚊蝇的数量马上又会增多起来。
When these individuals were moved to another field the number of flies afflicting the herd increased.
化学成分的改变极大地改变了湖区的生态环境，导致咸海鱼类数量剧减。
That change in chemistry has led to staggering alterations in the lake's ecology, causing precipitous drops in the Aral Sea’s fish population.
在Cuervo之前的研究中，她发现当细胞年龄增长，他们持续产生同样数量的伴护蛋白质，不同的是细胞内的化学成分很快将这些伴护蛋白质分解。
In previous research, she found that as cells age, they continue to produce the same amount of the chaperone, but changes in the cell's chemistry break it down too quickly.
申领洗衣房各类物品并确保化学剂等被恰当地使用，使用正确的数量以降低成本、提高质量，避免事故。
For laundry room all kinds of items and ensure the laundry chemical agent is properly used, use the right quantity to reduce cost, improve quality and avoid accidents.
假如我来负责，我会限定我们国家所允许的人口数量，想出减少每天使用化学品的数量的办法来。
I would limit the number of people allowed in our country and figure out a way to reduce the amount of chemicals used daily.
处理的时间越长，那么要得到达到相同结果所需的化学品的数量越少。
The longer the treatment time, the smaller the quantity of chemicals needed to achieve the same result.
根据研究者和杀虫剂工业会报道：其中一个难题是只有很少的化学药品被批准使用在市场的床垫上，但这些化学药品无疑是减少臭虫数量最有效的工具。
One of the problems, according to researchers and the pesticide industry, is that there are few chemicals on the market approved for use on mattresses that are effective at reducing bed bug numbers.
申领洗衣房各类物品并确保化学剂等被恰当地使用，使用正确的数量以降低成本、提高质量，避免事故。
Apply for Laundry goods and ensure chemicals etc are used properly, and in correct quantities, to avoid accidents and keep low cost and high quality.
该协会没有全部列出这22家公司的名称，但这22家公司正好是被查出产品含有过量有毒化学物的公司数量。
Thee association did not name all 22 companies, but 22 is the same number of manufacturers whose milk products were found to have contained excessive toxic chemical.
但给细胞灌满葡萄糖会使它们产生数量庞大的高度活跃化学物质，即破坏细胞的自由基。
But swamping the cells with glucose caused them to produce prodigious quantities of highly reactive chemicals known as free radicals, which damage cells.
在经过对植物体系进行酶相对数量的调整后，研究人员会在这些酵母中加入一种名为二甲基吗啡的混合化学物质，这样就会得到纯净的吗啡。
After tweaking the system to adjust the relative amounts of the enzymes, the researchers could feed their yeast a precursor chemical called thebaine, and get pure morphine in return.
经过扫描发现在产生这种化学物质的细胞上的存在的”受体“数量更少。
Scans spotted fewer "receptors" for the chemical on the cells which make it.
两种剖面含有相同的化学排列，所不同的是含有特殊化学物质的数量——在基底细胞癌患处有的增加有的减少。
Both profiles contained the same array of chemicals; the difference involved the amounts of specific chemicals - some were increased and others decreased in samples from basal cell carcinoma sites.
【物理学】元素：元素，由原子组成的物质，其原子中的每一核子具有同样数量的中子、用一般的化学方法不能使之变得更为简单的物质的元素。
Chemistry Physics a substance composed of atoms having an identical number of protons in each nucleus. Elements cannot be reduced to simpler substances by normal chemical means.
电推进系统具有比化学推进器最少高一个数量级的比冲，所以采用电推进系统可以大量减少推进剂质量。
Electric propulsion system offers specific impulse at least an order of magnitude higher than those of chemical thrusters, so propellant masses can be reduced by the same factor.
对于分散良好的铂，表面上的全部粒子在表面上基本上都能被相同数量的氧原子或氢原子进行化学吸附。
For well-dispersed pt, all particles are essentially on the surface available for chemisorption by an equal number of oxygen or hydrogen atoms.
最近在化学需氧量研究上的进展已扩大了可供测试方法选择的数量。
Recent advances in oxygen demand research have expanded the number of options available for testing.
随着藻类的运动，光亮和黑暗交替出现，把碳固定住并不断增加其数量，这可能是通过促成只在晚上进行的化学反应而产生的。
The constant shift between light and darkness as the algal cells circulate increases the amount of carbon that they fix, probably by promoting chemical reactions that occur naturally only at night.
在其他一些情况下，电子鼻被用来减少食品生产中化学分析的数量，尤其是在需要定性结果的时候。
In other cases, electronic noses can be used to reduce the amount of analytical chemistry that is per - formed in food production especially when qualitative results will do.
在其他一些情况下，电子鼻被用来减少食品生产中化学分析的数量，尤其是在需要定性结果的时候。
In other cases, electronic noses can be used to reduce the amount of analytical chemistry that is per - formed in food production especially when qualitative results will do.
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