Reaction kinetics is far less perfect than thermochemistry theory.Why?
学动力学远不及学热力学那么完美。
We put chemicals in test tubes in our chemistry class.
我们上学课时把学药品放进试管里。
Semimetallic chemical element, chemical symbol B, atomic number 5.
半金属的学元素,学符号B,原子序数5。
As a new subject,sonochemistry had been applied in many chemistry and chemical industry fields.
声学作为一门新的学科,已经广泛应学及工领域。
He is hot in mathematics and chemistry.
他数学和学极好。
I have only a rudimentary knowledge of chemistry.
我只有些粗浅的学知识。
Chemicals are used to keep the insects down.
学药品阻止昆虫滋生。
Objective To confirm the serum pharmacochemistry of Xingnao Gutta Pills.
目的确定醒脑滴丸血清药物学。
This paper studied electrochemical behaviour of Hexestrol at a glassy carbon electrode.
了现代电学分析方法系统研究了己烷雌酚在玻碳电极上的电学行为。
Be absorbed in the chymic oak and plastic industry.
专注学橡塑工业产品研发生产!
An acid can react with a base to form a salt.
酸和碱起学反应成盐。
Chemically treated hair can become dry and brittle.
经过学处理的头发会变得焦脆。
These chemicals are practically insoluble in water.
这些学物质几乎不溶水。
The fundamentals of inorganic chemistry are very important.
无机学的基础很重要。
The chemistry book had asummary at the end of each chapter.
那学书每章末均附有一概要。
There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.
这里有37讲,主要是地质年代学、放射性同位素地球学和稳定同位素地球学。
The same water was reused after chemical treatment.
原来的水经过学处理之后再度使。
The chemical fertilizer should be well dug in.
学肥料应该均匀地混入土壤中。
The course will encompass physics, chemistry and biology.
课程将包括物理、学和生物学。
The soil has been poisoned with chemical waste from the factory.
土壤被从工厂排出的学废料污染了。
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Isn't the chemistry homework due next Wednesday?
化学作业不是下周三交吗?
Look, she is in your chemistry class, isn't she? You are good at chemistry.
听着,的化学课上,不是吗?擅长化学。
Is just a chemical reaction that compels animals to breed.
不过是让动繁衍后代的化学反应罢了。
Asthma attacks can be triggered by pollen, dust, harsh chemicals or scents.
花粉、灰尘、刺激性化学质或气味可引发哮喘。
It also generates reactive chemicals that attack the microbes from within.
它还能产生活性化学质,这种化学质能从内部攻击微生。
The organisms also produce a chemical. This chemical lets them enter a person's body.
这种生还会产生一种化学质。该化学质会让它们进入人体。
Some of the early names referred to their chemical properties.
早期的一些名字提到了它们的化学特性。
But how do you make chemicals, Linda? Where do they come from?
可是化学么制造呢,琳妲?化学是从哪里来的呢?
We've our grandfathers, we use pesticides and other chemicals.
我们祖祖辈辈使用杀虫剂和其他化学。
They analyzed bacteria, fungi, parasites and chemicals.
他们分析了细菌、真菌、寄生虫和化学质。
I chose chemistry as my major in my college.
那时我选择化学作为大学的专业。
Cigarette smoke contains 69 chemicals that are known to cause cancer.
香烟含有69种致癌化学质。
It's actually to start a chemical reaction.
而是为了引发化学反应。
Cement is really the chemistry behind concrete.
水泥是混凝土背后的化学。
It is a chemistry teacher in high school.
是高中的一名化学老师。
It is the number one country in chemistry.
德国化学界首屈一指。
Now, how did you discover these chemicals?
们是样发现化学?
Officials apparently knew for years of a dangerous stockpile of chemicals, which finally blew up.
显然,官员数年前就知道化学储存的危险性,这些化学最终被引燃。
When I left college, I worked in developing chemical dyes.
大学毕业后,我从事化学染料的开发工作。
The chemical composition is actually potassium nitrate.
化学成分实际上是硝酸钾。
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