Semimetallic chemical element, chemical symbol B, atomic number 5.
半金属的化学元素，化学符号B，原子序数5。
Dyes come from plants or from chemicals.
染料物或化学物质中得来的。
These chemicals are practically insoluble in water.
这些化学物质几乎不溶于水。
As chemical reagent and corrodent of integrated plate.
作化学试剂和集成电路电镀板的消蚀剂。
The same water was reused after chemical treatment.
原来的水经化学处理之后再度使用。
Chemicals are used to keep the insects down.
化学药品用于阻止昆虫滋生。
Have you studied the composition of the chemicals?
你研究这种药品的成分了吗?
Choice having introduced the hammerhead and cleading chemical composition.
介绍了锤头和衬板化学成分的选择。
What are the chemical reaction characteristics of tropane alkaloids?
氢溴酸东莨菪碱的鉴别原理什么？
The chemical fertilizer should be well dug in.
化学肥料应该均匀地混入土壤中。
Chemical modification including oxygenation, esterify, graft copolymerization and so on.
化学改性主要有氧化、交联、酯化和接枝共。
The chemical must be salted out and allowed to dry.
把这种化学物质加盐分离出来并让它变干。
We put chemicals in test tubes in our chemistry class.
我们上化学课时把化学药品放进试管里。
The soil has been poisoned with chemical waste from the factory.
土壤被工厂排出的化学废料污染了。
The heat brings about a chemical reaction, and oxygen is liberated.
热量引起化学反应, 释放出氧气。
A catalyst is a substance which speeds up a chemical reaction.
催化剂一种能加速化学反应的物质。
The fission of the cell could be inhibited with certain chemicals.
细胞的裂变可以通某些化学药品加以抑制。
Chemicals in the body break our food down into useful substances.
人体中的化学元素把食物分解成有用的物质。
Certain chemicals are easily absorbed into the bloodstream, while others are not.
某些化学药品很容易溶于血液, 有些则不行。
The explosion of the chemical plant has poisoned many local residents.
那座化工厂的爆炸毒死了许多当地居民。
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It was easy to get the chemicals, but he needed the bodies.
添加剂很容易得到，但没有测试者。
Is just a chemical reaction that compels animals to breed.
不过让动物繁衍后代的化学反应罢了。
For bioluminescence, creatures require two unique chemicals.
为了生物发光，生物需要两种独特的化学物质。
Now, how did you discover these chemicals?
你们怎样发现化学品？
Cigarette smoke contains 69 chemicals that are known to cause cancer.
香烟含有69种致癌化学物质。
It also generates reactive chemicals that attack the microbes from within.
它还能产生活性化学物质，这种化学物质能从内部攻击微生物。
Because MDMA affects serotonin, a nervous system chemical.
这因为MDMA会影响一种名为“血清素”的神经系统化学物质。
Pieces of hair can take in this chemical.
毛发会吸收这种化学物质。
DDT is a chemical used to kill insects.
DDT一种用于杀死昆虫的化学物质。
Fertilizer is a chemical that helps plants grow.
化肥一种帮助植物生长的化学物质。
There are two important chemicals found in all our brains - dopamine and acetylcholine.
多巴胺和乙酰胆碱。
Never use harsh chemicals that can discolor the boot.
千万不要使用强效化学物质，以免靴子褪色。
They like the chemicals from a person's body.
它们喜欢人体中的化学物质。
They analyzed bacteria, fungi, parasites and chemicals.
他们分析了细菌、真菌、寄生虫和化学物质。
A train derailment earlier this month spilled toxic chemicals.
本月早些时候，一列火车脱轨，泄漏了有毒化学物质。
What's the plants' motivation for producing such chemicals?
那么植物制造这样一种化学物质何缘由呢?
The airbags contain a chemical that could make them explode.
气囊内含有能够造成爆炸的化学物质。
The two vessels were carrying toxic chemicals and jet fuel.
这两艘船载有有毒化学品和航空燃料。
That's adding a chemical to clouds to increase rain or snowfall.
它向云中添加化学物质以增加降雨或降雪。
They contain a harmful chemical that caused my liver to fail.
药里含有一种能导致肝功能衰竭的有害化学物质。
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蒂 第一季（双语）
人 2019年6月
