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。
These chemicals are practically insoluble in water.
这些化学物质几乎不溶于水。
Dyes come from plants or from chemicals.
染料是从植物或化学物质得来的。
As chemical reagent and corrodent of integrated plate.
作化学集成电路电镀板的消蚀。
The same water was reused after chemical treatment.
原来的水经过化学处理之后再度使用。
Chemicals are used to keep the insects down.
化学药用于阻止昆虫滋生。
Have you studied the composition of the chemicals?
你研究过这种药的成分了吗?
What are the chemical reaction characteristics of tropane alkaloids?
氢溴酸东莨菪碱的鉴别原理是什么？
Choice having introduced the hammerhead and cleading chemical composition.
介绍了锤头衬板化学成分的选择。
The chemical fertilizer should be well dug in.
化学肥料应该均匀地混入。
We put chemicals in test tubes in our chemistry class.
我们上化学课时把化学药放进管里。
Chemical modification including oxygenation, esterify, graft copolymerization and so on.
化学改性主要有氧化、交联、酯化接枝共聚。
The chemical must be salted out and allowed to dry.
必须把这种化学物质加盐分离出来并让它变干。
The heat brings about a chemical reaction, and oxygen is liberated.
热量引起化学反应, 释放出氧气。
The fission of the cell could be inhibited with certain chemicals.
细胞的裂变可以通过某些化学药加以抑制。
A catalyst is a substance which speeds up a chemical reaction.
催化是一种能加速化学反应的物质。
Chemicals in the body break our food down into useful substances.
人体的化学元素把食物分解成有用的物质。
The soil has been poisoned with chemical waste from the factory.
被从工厂排出的化学废料污染了。
The field trials indicate that the demulsifier chemical can effectively demulsify c...
应用除油除油后的污水达到回注指标,直接经济效益显著。
The wrong chemical balance can cause severe distortion of the photographic image.
化学药水不合比例可引致摄影图像的严重失真。
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It was easy to get the chemicals, but he needed the bodies.
添加剂很容易得到，但是有试者。
Is just a chemical reaction that compels animals to breed.
不过是让动繁衍后代反应罢了。
For bioluminescence, creatures require two unique chemicals.
为了生发光，生需要两种独特质。
Now, how did you discover these chemicals?
你们是怎样发现品？
Cigarette smoke contains 69 chemicals that are known to cause cancer.
香烟含有69种致癌质。
It also generates reactive chemicals that attack the microbes from within.
它还能产生活性质，这种质能从内部攻击微生。
They analyzed bacteria, fungi, parasites and chemicals.
他们分析了细菌、真菌、寄生虫和质。
Because MDMA affects serotonin, a nervous system chemical.
这是因为MDMA会影响一种名为“血清素”神经系统质。
Pieces of hair can take in this chemical.
毛发会吸收这种质。
Fertilizer is a chemical that helps plants grow.
肥是一种帮助植生长质。
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.
千万不要使用强效质，以免靴子褪色。
They like the chemicals from a person's body.
它们喜欢人体中质。
Industries pollute rivers by dumping poisonous chemicals into them.
工业企业向河流倾倒有毒质，污染了水源。
A train derailment earlier this month spilled toxic chemicals.
本月早些时候，一列火车脱轨，泄漏了有毒质。
The airbags contain a chemical that could make them explode.
气囊内含有能够造成爆炸质。
That's adding a chemical to clouds to increase rain or snowfall.
它是向云中添加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有害质。
Carrying the hurt or anger of an offense leads the body to release stress chemicals.
满怀冒犯后伤害或愤怒会导致身体释放压力质。
Exercise releases endorphins which are natural feel-good chemicals in the body.
运动可以释放内啡肽，这是一种让人感觉良好天然质。
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得来的。
集成电路电镀板的消蚀
用于阻止昆虫滋生。
有
试者。
繁衍后代
反应罢了。
