substances

substances

美 [ˈsʌbstəns] 　英 ['sʌbstəns]

• n.物质；【哲】实体；实质；(故事等的)要旨
• 网络化学物质；内容；本质

词形变化

反义词

同义词

英汉解释

英英解释

例句

You could test a variety of substances to see which ones have the best heat retention.

您可以测试各种不同物质，看看哪种具有最佳的热保持性。

Chemical constituent analysis showed that thioether compound might be one of insecticidal substances in A. sativum and A. cepa.

成分分析表明硫醚类化合物可能是大蒜和圆葱中含有的杀虫活性物质之一。

Peptides are short oligomer and polymer substances made up of two or more amino acids linked in a chain.

肽是短的寡聚物或两个及以上氨基酸连接成的肽链组成的聚合体。

The results directly proved that L-LPS was one of the important pathogenic substances of leptospira.

实验结果表明L-LPS是钩端螺旋体主要致病物质之一。

The use of any and all banned substances within the workplace at the company is strictly prohibited.

严禁在公司内工作场所使用任何及所有违禁物质。

However, the Tokyo Electric Power Company did not say, bottom of why such a high concentration of radioactive substances.

但是，东京电力公司没有说明，海底中为什么会有如此高浓度的放射性物质。

The utility planned additional sampling to see how widely the radioactive substances have spread, he said.

他说，该公司计划进行更多的取样，以便了解放射性物质扩散到了多大的区域。

It applies to the larger temperature difference between the two substances, used for high temperature and low turbidity measurements.

它适用于两种物质之间的温差较大，高温和低浊度测量。

The first involved a gene called DRD2 which affects how much pleasure we get from alcohol and cigarettes and other addictive substances.

第一组基因被称为多巴胺-D2，它直接影响了人体能从例如烟草、酒精这样易上瘾的物质中所获取的快感。

It is not always easy to separate a mixture Of liquids into pure substances by fractional distillation.

采取分馏的办法把一种混合的液体分成纯物质，总是不容易的。

stable and did not abuse substances, but they were considered to be cognitively disabled and chronically ill.

在收纳期间，受试者的症状是稳定的，而且没有滥用药物，但是被诊断为认知失能及慢性异常。

The result showed that among the lipid substances we extracted, most compositions which had stronger antimicrobial activities are alkanes.

结果表明，抗菌活性较强的物质中大多是烷烃类物质。

Synthetic chemical substances so fully permeate our environment that it is all too easy to forget that someone had to discover them.

合成的化学物质充满我们生活的每个角落，以至于我们太习以为常，忘记了发明它的人。

Electrical inventors who followed Edison did not have to experiment with the substances which he had found would not work.

爱迪生之后的电器发明家就不必对已经被他发现不起作用的那些物质进行实验了。的那些物质进行实验了。

A homogeneous mixture of two or more substances, which may be solids, liquids, gases, or a combination of these.

两种或两种以上物质的同质混合物，这些物质可以是固体、液体、气体或这三者的结合

Now, companies with a brand to protect are trying to predict what other substances might end up in their dairy products.

现在，想要保护自身品牌的公司都在努力预测，它们的乳制品中还可能会出现其它什么物质。

Please confirm by return that none of the above listed substances are used for the production of our products including its packing.

请回复确认，上表中所列物质没有在我们的产品以及包装中使用。

substances and woodworking are a dangerous mix. Stay out of the wood shop if you are even remotely under the influence of any intoxicants.

任何兴奋性东西木工来说非常危险的。哪怕你只是稍微沾染了一点点使你兴奋的东西，也要远离木工活。

The air is sucked into a filter, which instantaneously analyses it to see whether it includes any suspect substances.

这些气体被会吸入一个过滤器，并同时分析其组成以探查是否存在任何可疑物质。

The gene's role seems to be to export substances out of the cells that secrete earwax.

该基因可以控制细胞排出物质以分泌耳垢。

The general objective of distillation is the separation of substances that have different vapor pressures at any given temperature.

蒸馏的一般目的，是分离在任何给定温度下具有不同蒸汽压的诸物质。

The appearance of interference colors is quite common and can easily be observed in any number of substances.

干涉色是很常见的，在许多材料中都容易看到。

Several investigations have been made of NaCN and KCN in the regions of temperature where these substances are cubic.

在NaCN和KCN是立方结构的温度范围内，对它们进行了些研究。

It was soon recognized that the substances which provide this resistance could be found in blood serum.

人们不久就弄清了这种提供抵抗力的物质是存在于血清中的。

The evidence presented here points to an ample array of substances and effects that may illustrate how this may be done.

这里所介绍的证据，指出有很多种物质和效应可以说明这是如何做到的。

We conclude that the two substances have combined to form the new material.

我们得出这样的结论：两种物质化合而形成新的物质。

Most common substances exist in the solid phase at low temperatures.

大多数一般物质在低温下处于固态。

The factory's walls, ceiling and flooring are made of materials which are easy to clean and do not absorb substances.

工厂的墙壁、房顶和地板都是用容易清洁并不易沾灰的材料制成的。

And there must be simple substances, since there are compounds; for a compound is nothing but a collection or aggregate of simple things.

由于存在复合物，因此必然存在单纯物，所谓复合物，即单纯物的集合。

The reason is: At this point oral bacteria began to break down food residues in the acidic substances, corrosive enamel dissolution.

理由是：此时口腔细菌开始分解的酸性物质的食物残渣，腐蚀性搪瓷解散。

At least some of the confusion is due to the fact that researchers rarely test these substances in any standard way.

不同的研究得出了相矛盾的结果，但至少有些是因为研究者没有使用标准化手段进行测试。

People who become addicted to certain substances are subconsciously trying to boost the levels of these feel-good chemicals.

那些成瘾者其实是下意识地想要增加使人愉悦的化学物质。

The waste material might have infectivity bacteria, viruses, chemical pollutants and radioactive such harmful substances, for great risk.

废物中可能存有传染性病菌、病毒、化学污染物及放射性等有害物质，具有极大的危险性。

CONCLUSION The method established is successfully used to determine tetrahydrozoline hydrochloride and its related substances in eye drops.

结论本方法灵敏度高，方法操作简便，可满足本品含量及有关物质的测定。

They do not protect against external radiation, or against any other radioactive substances besides radioactive iodine.

除了放射性碘，他们不能阻止外部的辐射、或是任何其他辐射性物质。

As a result of these substances in the environment of space in the poor unable to retain long time, so this just shows that they are formed.

由于这些物质在太空的恶劣的环境中无法长时间保留，因此这表明它们是刚形成的。

He said the government would study with the Tokyo Electric Power Company a permanent closure of the measures of radioactive substances.

他表示，政府将与东京电力公司一道研究永久封闭放射性物质的措施。

He wants government and law enforcement agencies across the world to help tackle the trafficking of these performance-enhancing substances.

他希望世界各国的政府部门及执法部门能联合起来共同打击贩卖兴奋剂的非法交易。

This led her to deduce that there were other substances within pitchblende that had properties of radioactivity.

于是玛丽推断出，在沥青铀矿中可能还有其他具有放射性的物质。

Starch is due to the nature of the starch molecules contains easy-to-reactions of hydroxyl, starch many substances reactions.

淀粉的性质是由于淀粉分子中含有易于发生化学反应的羟基，所以淀粉能与许多物质发生化学反应。

None of this is to say that people must immediately bin all vitamin-containing substances; vitamins are, after all, essential nutrients.

这一切都不意味着人们应该立马将所有含维生素的物质弃之如敝屣。毕竟维生素是基本营养品。

We have explained that water is one of the substances forming out of a Big Bang, and that water planets are more numerous than dry planets.

我们已经解释过了，水是宇宙大爆炸形成的一种物质。而且有水的行星比无水干燥的行星要更多。

Substances arranged in a three-dimensional pattern are known as a crystalline solid each with a repeating unit called a crystal unit.

具有三维空间排列结构的物质称为晶体，其中的重复单元称为晶体单元。

bacteria can be considered as a type of plant, secreting poisonous substances into the body of the organism they attack, . . .

细菌可以被认为是一种植物形式，把有毒的物质藏匿到受它们侵袭的有机体里，……

However, at present they do not know how these substances interact to attract mosquitoes.

然而，目前他们不知道如何将这些物质相互作用来吸引蚊子。

Microglia are like the body's natural garbage collection cells that rush to damaged or inflamed areas to get rid of toxic substances.

小胶质细胞就像是机体中自然产生的垃圾收集细胞，它能够转移到受损或发炎区域来处理这些毒性物质。

At present, for blueberry research in bioactive substances mainly around the anthocyanin, blueberry Polysaccharides on is still less.

目前对于蓝莓中生物活性物质的研究主要围绕花色苷类物质，关于蓝莓中多糖的研究还较少。