flattery /ˈflætərɪ/ TEM4
1.N-UNCOUNT Flattery consists of flattering words or behaviour. 奉承
例：
He is ambitious and susceptible to flattery.
他雄心勃勃，而且很喜欢听恭维话。

可汗学院公开课：基础化学
1.元素与原子
proton质子
the number of protons in the nucleaus of atom defines the element
原子核中的质子数确定元素
periodic table元素周期表
written in order of proptons number in elements
按元素不同质子数量排序
the number of protons is equal to the atomic number质子数等于原子序数
the constituents of an atom原子的组成部分
proton 质子
electon电子
neatron中子
同一元素，电子和中子数量可变
如C12, 碳12
碳的原子序数/质子数为6， 原子核（质子+中子）为12
电子在原子外围，围绕原子核（质子和中子）旋转
proton has a positive charge, and electons have a negative charge
质子带正电荷，电子带负电荷。

primary /ˈpraɪmərɪ/
1.ADJ You use primary to describe something that is very important. 首要的
例：
That's the primary reason the company's share price has held up so well.
这就是那家公司的股票价格一直保持得这么好的首要原因。
His misunderstanding of language was the primary cause of his other problems.
他对语言的误解是他其他问题的主要原因。
2.ADJ Primary education is the first few years of formal education for children. 初级的
例：
The content of primary education should be the same for everyone.
初级教育的内容对每个人都应该是相同的。
Ninety-nine percent of primary pupils now have hands-on experience of computers.
99%的小学生如今都有电脑实际操作经验。
3.ADJ Primary is used to describe something that occurs first. 最初的
例：
It is not the primary tumour that kills, but secondary growths elsewhere in the body.
致命的并不是原发肿瘤，而是在身体其他部位的继发。
4.N-COUNT A primary or a primary election is an election in an American state in which people vote for someone to become a candidate for a political office. Compare . (美国各州的) 初选
例：
...the 1968 New Hampshire primary.
…1968年新罕布什尔州的初选。

gouge /ɡaʊdʒ/ (gouging,gouged,gouges)
1.V-T If you gouge something, you make a hole or a long cut in it, usually with a pointed object. 凿
例：
He gouged her cheek with a screwdriver.
他用螺丝起子戳她的面颊

rigorous /ˈrɪɡərəs/
1. A test, system, or procedure that is rigorous is very thorough and strict. (测试、制度、程序) 严格缜密的
例：
The selection process is based on rigorous tests of competence and experience.
挑选过程是建立在对能力和经验严格缜密的考核的基础之上的。
2.ADV 严格缜密地 rigorously
例：
...rigorously conducted research.
…严格进行的研究。
3.ADJ If someone is rigorous in the way that they do something, they are very careful and thorough. 一丝不苟的; 缜密的
例：
He is rigorous in his control of expenditure.
他在控制开支方面一丝不苟。
同近义词 同根词

concentration
The concentration of a substance is the proportion of essential ingredients or substances in it. 浓度
例：
pH is a measure of the concentration of free hydrogen atoms in a solution.
pH值是溶液中游离氢原子浓度的计量单位。
A concentration of something is a large amount of it or large numbers of it in a small area. 集中
例：
The area has one of the world's greatest concentrations of wildlife.
该地区有世界上野生生物最集中的区域之一。
化学值化学物质的积聚浓缩。

对奥氏体型钢制球罐的对接接头应优先采用射线检测，其他材料制钢制球罐应优先采用衍射时差超声测试TOFD
TOFD施工的好处是可以减少交叉作业的影响确保工期，TOFD为非辐射作业。

可吸入微粒物PM2.5
细颗粒物又称细粒、细颗粒、PM2.5。细颗粒物指环境空气中空气动力学当量直径小于等于 2.5 微米的颗粒物。它能较长时间悬浮于空气中，其在空气中含量浓度越高，就代表空气污染越严重。虽然PM2.5只是地球大气成分中含量很少的组分，但它对空气质量和能见度等有重要的影响。与较粗的大气颗粒物相比，PM2.5粒径小，面积大，活性强，易附带有毒、有害物质（例如，重金属、微生物等），且在大气中的停留时间长、输送距离远，因而对人体健康和大气环境质量的影响更大。2013年2月，全国科学技术名词审定委员会将PM2.5的中文名称命名为细颗粒物。细颗粒物的化学成分主要包括有机碳（OC）、元素碳（EC）、硝酸盐、硫酸盐、铵盐、钠盐（Na+）等。
inhale /ɪnˈheɪl/ CET6+ TEM4 (inhaling,inhaled,inhales)
1.V-T/V-I When you inhale, you breathe in. When you inhale something such as smoke, you take it into your lungs when you breathe in. 吸入; 吸气
例：
He took a long slow breath, inhaling deeply.
他缓缓地深吸了一口气。

isothermal /ˌaɪsəʊˈθɜːməl/
ADJ (of a process or change) taking place at constant temperature (过程或变化)恒温的
adiabatic /ˌædɪəˈbætɪk, ˌeɪ-/
1.
ADJ (of a thermodynamic process) taking place without loss or gain of heat 绝热的

fractionation分馏法
[化工] fractionation
[化工] fractional distilation
分馏是分离几种不同沸点的混合物的一种方法；对某一混合物进行加热，针对混合物中各成分的不同沸点进行冷却分离成相对纯净的单一物质过程。过程中没有新物质生成，只是将原来的物质分离，属于物理变化。分馏实际上是多次蒸馏，它更适合于分离提纯沸点相差不大的液体有机混合物。

etherification
[有化] 醚化；醚化作用
【化学】使醚化，使(醇或酚)转化成醚

effluent['eflʊənt]
n. 污水；流出物；废气
N-MASS Effluent is liquid waste material that comes out of factories or sewage works. 污水
The effluent from the factory was dumped into the river.
那家工厂的污水被排到了河里。

feedstock
n. 原料；给料（指供送入机器或加工厂的原料
the main raw material used in the manufacture of a product (制造产品的)原料

volatile
[化学] 挥发性的；不稳定的；爆炸性的
A volatile liquid or substance is one that will quickly change into a gas. 易挥发的