[有机化学] 有机金属化学

Autobiography of Nobel Prize Winner: Jean-Marie Lehn I was born on September 30 1939 in Rosheim, a small medieval city of Alsace in France. My father, Pierre Lehn, then a baker, was very interested in

发表于:2018-12-05 / 阅读(122) / 评论(0) 分类 英语沙龙2004全年合辑下

By Mario Ritter Broadcast: July 8, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Recently, a listener in Nigeria told us about an organization called World-Wide Opportuniti

发表于:2018-12-07 / 阅读(144) / 评论(0) 分类 VOA2003(下)-农业与经济

1. What's your major in college? 你的专业是什么? 2. What did you major in? 你的专业是什么? 3. What are you majoring in? 你的专业是什么? 4. Why are you so interested in English? 为什么你对英语那么感兴趣? 5. I t

发表于:2018-12-25 / 阅读(153) / 评论(0) 分类 面试口语脱口而出

Murchison Meteorite's Chemical Bonanza The 1969 Murchison meteorite was known to harbor complex organic compounds, but a new analysis in Proceedings of the National Academy of Sciences finds that it may also contain millions of chemicals and shed lig

发表于:2019-01-02 / 阅读(202) / 评论(0) 分类 60秒科学

The United States space agency says its Mars exploration vehicle has discovered chemical substances necessary for life. Scientists reported that NASAs Curiosity rover found large amounts of organic molecules in 3.5 billion-year-old rock in an area ca

发表于:2019-01-03 / 阅读(120) / 评论(0) 分类 2018年VOA慢速英语(六)月

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

发表于:2019-01-03 / 阅读(161) / 评论(0) 分类 2014年VOA慢速英语(八)月

Broadcast: Mar 17, 2003 Rain hits the 1) shingles on the large covered porch that leads up to David Masumoto's farmhouse. From the porch he can see 90-year-old 2) raisin 3) vineyards his family has te

发表于:2019-01-03 / 阅读(168) / 评论(0) 分类 VOA2003(上)-科技先知

By Roger Hsu Mephis, Tennessee 17 August 2006 watch Museum report The National Ornamental Metal Museum in Memphis is devoted to the conservation and advancement of metalwork. It is a place where metal smiths become synonymous with artists and where

发表于:2019-01-06 / 阅读(237) / 评论(0) 分类 2006年VOA标准英语(八月)

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Metal Sonic is flying through space and comes to an asteroid field, you need to help him blast his way through without getting hit or its game over. Instructions: Move: Up

发表于:2019-01-08 / 阅读(222) / 评论(0) 分类 Daily Free Games

AGRICULTURE REPORT — November 12, 2002: Organic Food Labeling By Mario Ritter This is the VOA Special English Agriculture Report. Last month, Secretary of Agriculture Ann Veneman announced a program

发表于:2019-01-11 / 阅读(133) / 评论(0) 分类 农业与发展

今天我们要学的词是organic。 Organic, 有机的,绿色的。 Organic product, 有机产品。近年来,美国很多消费者开始崇尚绿色、有机食品。不过,统计数字显示, Organic food accounted for only 3.5% of the fo

发表于:2019-01-11 / 阅读(138) / 评论(0) 分类 英语每日一词

AS IT IS 2016-10-05 Nobel in Chemistry Goes to Makers of Worlds Smallest Machines 2016诺贝尔化学奖:世界上最小的机器 Three scientists have won the Nobel Prize in Chemistry for their work in developing tiny machines. The three men are Jea

发表于:2019-01-12 / 阅读(133) / 评论(0) 分类 2016年VOA慢速英语(十)月

More Land Being Used for Organic Farming More land around the world is being dedicated to organic farming. The Worldwatch Institute says since 1999 theres been a more than three-fold increase to 37 million hectares. Organic farming is farming without

发表于:2019-01-13 / 阅读(139) / 评论(0) 分类 VOA标准英语2013年(一月)

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

发表于:2019-01-13 / 阅读(146) / 评论(0) 分类 VOA标准英语2010年(八)月

SCOTT SIMON, HOST: Organic milk is widely available these days, but what does that label really mean? A new Washington Post investigation found that there are considerable differences between the organic milk you can buy in a grocery store and the ki

发表于:2019-01-17 / 阅读(103) / 评论(0) 分类 2017年NPR美国国家公共电台5月

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(173) / 评论(0) 分类 2016年Scientific American(十)月

Voice 1 Hello. Im Marina Santee. Voice 2 And Im Elizabeth Lickiss. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Milk chocola

发表于:2019-01-19 / 阅读(122) / 评论(0) 分类 环球英语 Spotlight

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(208) / 评论(0) 分类 农业与发展

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

发表于:2019-02-03 / 阅读(137) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(152) / 评论(0) 分类 2007年VOA常速英语(十月)
学英语单词
abbreviation of keyword
Akaltyn
anal sec
asbestos-reinforced thermosetting compound
avihu
bird's-eye chilli
blue ironstone
Blukang, Sungai
boothes
brown broad
Chad
Chiloé, Prov.de
cis-1, 4-polyisoprene
cloisture
Coeloglossum viride
comparison sheets
cristall
cutting plane method
ddis
declaration of war
dismain
EFL
ejection testing
enmine
enthusi
fibre concrete
Forestiera neomexicana
generalized velocity of mechanism
geohistories
great-grand
grop
Hassi Mameche
Hopkins-Cole reaction
horseshoer
impulse shopping
incarial bone
inertia test
ion floatation method
lance-jack
land-management
light reddish chestnut
macrotrichias
Malyy Zhemchuzhnyy, Ostrov
Mar del Plata
mecistoscelis scirtetoides
melodic minor
metallurgical treatment
milli henry
modering
multi-purpose vice
naphtyl formate
Nawāshahr
Nazarovskiy Rayon
nickel silicon carbide coating
nmb
omnient
parlour maid
payment of the price
pc/tv
perimercurian
Phenylbutylcarbinol
piecemeal
pin-feed device
placentiform
plague of locust
pressurization gas connection
primary fission frag-ment
pvc-coated
Raelists
Rajada
rear position lamp
refined juice
refrangible
rest easy
revolvency
rock edicts
rota-
Sam Houston State University
seeback effect
Sequatchie R.
spheroidal earth
stand sb a drink
stenochromy
strain-resistance effect
stream-line flow
sub value
subject analytic
sukis
switch selling
system utility
Teiwalon
terrain camera
time-average method
total luminous flux
Tremellaceae
tulyn
upper dead center
vampering
voiceovering
water sampling and temperature reading room
Worodougou, Région du
zavalla