单词：picoline
pyridine, and obtained from bone oil, acrolein ammonia, and coal-tar
naphtha, as colorless mobile liquids of strong odor; -- called also
methyl pyridine.
picoline的用法和样例：
例句
- Picoline is the by-product in the preparation of diphenylamine with aniline.甲基吡啶是苯胺连续缩合合成二苯胺的副产物。
单词：picoline 相关文章
越来越多的人居住在异国他乡。有三到四个身世来源的作家皮柯．耶尔(Pico Iyer) 思索着家的意义，旅行的乐趣和静止的平和。
TED公开课:地球村
EXPLORATIONS - Children's Press Line By Karen Leggett Broadcast: Wednesday, October 27, 2004 (MUSIC) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Steve Ember with Explorations in VOA Speci
Explorations
箫华，我的一个朋友刚才打电话来说她心情不好。她怎么了？是忧郁症吗？不是，她开的咖啡店生意惨淡，三个星期来一直赔钱，这样下去，她的生意很危险，弄不好就要关门了。 噢，用一个
美国习惯用语
Voice 1 Welcome to Spotlight. I'm Liz Waid. Voice 2 And I'm Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 The sounds of traffic! You can h
环球英语 Spotlight
Now, its time for the VOA Learning English program, Words and Their Stories. On this show, we talk about common, expressions in American English. Today, we will talk about the word line. Line is a simple, four-letter word, but it has many meanings, m
2017年VOA慢速英语(三)月
By Mil Arcega Washington, DC 21 December 2006 watch UK OnLine Shopping Britain's leading e-commerce industry group says the UK has overtaken the United States in the growth of on-line shopping. The Interactive Media in Retail Group, or IMRG, says on
2006年VOA标准英语（十二月）
我听之我见： 西方评论界认为，若再找出一座石山，将美国现代音乐界的四位开国元勋头像雕刻上去，那么Johnny Cash必是其中之一。Johnny Cash是影响美国近代乡村、流行、摇滚与民谣界最重要的创作歌手之一，他以浑厚而深沉的 Lyrics I walk the line By Johnny Cash I k
音乐咖啡厅
SCIENCE REPORT - January 2, 2002: New Cold Drug By Nancy Steinbach This is the VOA Special English Science Report. American researchers say they have developed the first drug that can effectively trea
科技之光
A: Were you able to get a look at the suspect's face? B: Yes. I know exactly what he looks like. A: I must ask you to pick him out of a line-up. B: That won't be a problem. A: Look closely at the five men in this line-up. B: I am looking. A: Do you s
英语情景对话-犯罪
Vieques Controversy May Persist After the Bombing Ends Michael Bowman Miami 18 Jun 2001 22:05 UTC Protests continued Monday on the Puerto Rican island of Vieques, days after the Bush administration an
VOA2001-国际风云（1）
听多了流行的歌曲，今天给大家来一首老歌经典，希望大家会喜欢。 如果大家有什么好歌，也可以给我留言或是在评论栏里给大家推荐。 I walk the line By Johnny Cash I keep a close watch on this heart of
好听的英文歌曲
BEIJING, Feb. 28 (Xinhua) -- Construction began on China's first low-speed maglev(磁力悬浮火车) line Monday in Beijing, a project that will make China only the second country with a low-speed maglev line after Japan. The project marked China's
英语新闻
Japanese designer Pico has combined her love of cats and handbags to create highly realistic purses. The bags are shaped like kitties with whiskersand tails. Each cat-bag is priced at about $500 to $700, but buyers dont seem to mind the steep pricing
阅读空间
今天我们要学的词是 flatline. Flatline的意思是停滞不前，可是作名词或者动词。The Bank of England has said it believes the UK economy will flat-line this year.英格兰银行说，英国经济预计今年将出现零增长。
英语单词荟萃
Lana Del Rey 微电影《Tropico》！电影艺术赋予了这个倾倒众生的女人一个展示灵魂的机会，这是你无法在平时见到的美丽躯体，意味深长的镜头切换唤醒了我们对于神秘之美的好奇，玄妙的音乐如
流行英文歌曲
在习语表达中，line可是一个很多用的词汇，不仅仅是绳索，路线或球场上的边界线，line还有很多更加丰富而有趣的表达，一起来看看吧~ 1.the bottom line 本质问题 该习语原意是指账本最底行，盈
英语口语
今天我们要学的词是out of line。 Out of line, 可以用来指行为举止过份，出格。 The candidate was clearly out of line by using personal attacks in the debate, 这个候选人在辩论中进行人身攻击的做法显然是有些过
英语单词荟萃
今天我们要学的词是walk a fine line. To walk a fine line, 小心行事。 Coaches have to walk a fine line between pushing their players to their full potential and pushing them too hard, 做为教练，一定要在鼓励运动员充分发挥潜
英语单词荟萃
Line In.... Line Down Line in... line down... line in* Line in... line down... line in... line down Line in... line down... line in... line down Line in and save me Myself can drug me down Line in, forever blissful Continue to line down Line in... li
英文摇滚歌曲
Helen: This is Real English from BBC Learning English. Im Helen. Zoe: 大家好，我是刘佳。Helen, 今天咱们要学的是什么最新表达呢？ Helen: Todays new expression is bottom line. Zoe: Bottom line. Helen, 这个短语说的是什么啊？ Helen: Well, bottom line is
地道英语在线听