很少有人欣赏自然界是化学的世界。
Few people appreciate that the natural world is a chemical one.
不是，我的专业是化学的。
上瘾的方式，不管是化学的还是行为的，都是非常复杂的。
The way addictions develop - whether chemical or behavioural - is complex.
“炼金术曾经是化学的同义词”纽曼教授说，“并且化学的概念比元素变化更庞大。”
“Alchemy was synonymous with chemistry,” said Dr. Newman, “and chemistry was much bigger than transmutation.”
这就是教学大纲，两大块，第一部分是化学的通则，关于这点，我们的课程1,还有，5。111课程以及，5。112课程都是一样的。
So, here's the syllabus: two big blocks, first block general principles of chemistry, 1 and that's the same whether you take 3.091 or 5.111 or 5.112.
这也就意味着我对他们作业的长篇大论更多的可能是满足我自己的意愿，想让他们在功课上像我一样成功，而不是对他们学习数学或者是化学的关心。
Which means that my homework haranguing may be more about my own need to make them as successful in school as I was than it is about their knowledge of math or chemistry.
该病是由大脑里一种化学失衡引发的。
The illness is triggered by a chemical imbalance in the brain.
化学是19世纪初期最杰出的实验室科学。
Chemistry was par excellence the laboratory science of the early nineteenth century.
冲击波是在易挥发的化学品爆炸时产生的。
她的专长是数学、地球科学和化学。
硝酸盐是水和土壤里天然存在的化学物质。
Nitrates are chemicals that occur naturally in water and the soil.
遗憾的是，我从未上过有机化学课，但我最近开始读一些相关的书。
Unfortunately, I've never taken a course in an organic chemistry course, but I've started reading some books about it lately.
这种化学腺苷是脑细胞活跃时释放的。
The chemical adenosine is released by brain cells when those cells are active.
光感受器是通过发出化学信号来对光作出反应的细胞。
Photoreceptors are cells that respond to light by sending out a chemical signal.
有机食品是纯粹的不含人工化学制剂或杀虫剂的食物。
Organic food is unadulterated food produced without artificial chemicals or pesticides.
他是世界上最优秀的古印度文化学者之一。
He was one of the world's foremost scholars of ancient Indian culture.
臭氧是氧气与紫外线发生化学反应而产生的。
Ozone is produced by the reaction between oxygen and ultraviolet light.
报告说，正在发育的大脑特别容易受到这些产品里可能含有的某些化学物质的毒性影响，而这些化学物质造成的损害可能是永久性的。
The developing brain, the report says, is particularly vulnerable to the toxic effects of certain chemicals these products may contain, and the damage they cause can be permanent.
老师原来是约翰·奈特西格，就是他教罗琳化学的。
The teacher turned out to be John Nettleship, who taught Rowling chemistry.
我是学化学的。
不幸的是，一些化学药品落在了一起，最后导致了爆炸，这是一个令人悲伤的事件。
Unfortunately, some chemicals there that fell together there and ended up causing a bit of an explosion, which was a sad event.
你看，原来某些微生物是化学合成的——它们不需要阳光，因为它们从化学反应中获取能量。
You see, it turns out that certain microorganisms are chemosynthetic—they don't need sunlight because they take their energy from chemical reactions.
我写的第一篇文章，是关于那位化学教授的简介，就是被评为年度教师的那个人。
The first article I wrote, it was a profile of the chemistry professor—the one who was named Teacher of the Year.
信息素和odorants （被检测为气味的化学物质）之间的区别可能是模糊的，一些研究人员将信息素归类为一种 odorant。
The distinction between pheromones and odorants—chemicals that are consciously detected as odors—can be blurry, and some researchers classify pheromones as a type of odorant.
化学是我最喜欢的科目。
这听起来很矛盾，因为这一假设背后的理念是，树叶在秋天产生的红色素是用于保护叶绿素这种吸收光的化学物质，以免它吸收过多的光。
It sounds paradoxical, because the idea behind this hypothesis is that the red pigment is made in autumn leaves to protect chlorophyll, the light-absorbing chemical, from too much light.
第三种是某些基本的化学物质，如碳、氧和氮。
A third is certain basic chemicals such as carbon, oxygen and nitrogen.
这些化学物质是来自核电站的受损部分。
These chemicals come from the injured parts of the nuclear plant.
一个人的腋窝会产生全部的吸引力，一些块菌就是利用了这样一种人性的特性——至少在化学家看来是这样的。
A person's armpits have all the appeal, and some truffles take advantage of such a human nature—at least to chemists.
珀金刚入学的时候，皇家化学学院的院长是德国著名的化学家奥古斯特·威廉黑姆·霍夫曼。
At the time of Perkin's enrolment, the Royal College of Chemistry was headed by the noted German chemist August Wilhelm Hofmann.
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