[化] 元素有机化合物

This is the VOA Special English Development Report. Right now, the top story in AIDS research involves newly announced findings about adult male circumcision. Two studies in Africa found that circumci

发表于:2018-11-27 / 阅读(328) / 评论(0) 分类 2006年慢速英语(十二)月

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(94) / 评论(0) 分类 60秒科学

This book stinks! is really a bad review. But even a classic work can start to smell when it gets old enough. Now chemists have developed a technique that identifies what kind of degradation process an old book or historical document is going through

发表于:2019-01-08 / 阅读(52) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(十)月

Judging a Book by Its Odor A study in the journal Analytical Chemistry identifies various organic compounds that old books give off and that can be analyzed noninvasively, offering important clues to an historic work's condition and prognosis. Steve

发表于:2019-01-30 / 阅读(143) / 评论(0) 分类 60秒科学

Why is my verse so barren of new pride, 为什么我的诗缺乏点晴之笔, So far from variation or quick change? 行文沉闷呆板,千篇一律? Why with the time do I not glance aside 为什么我的诗不顺应时尚, To new-found meth

发表于:2019-02-24 / 阅读(127) / 评论(0) 分类 莎士比亚十四行诗全集
学英语单词
adaptin
allyl benzoate
anticorrelate
arteriae pulmonalis
assignment to third party
astucious
automatic editing
Badefols
blanking circuit
blastoporic canal
breast flap
captal
carton board patched
chaining forward
charadriiform
chemin de fers
china bean
chromeplating
clip with wooden board
concertmeisters
Convoy Range
Densure
deuterophlebiids
distribute a dividend
dual motor drive
dyeing manual
dynic
elsinoe broussonetiae korosawa et katsuke
employment cost
equalist
exterior eruption
finish impression
flat conductor
foul weather gear
fuel filler
gas tungstun arc welding
gel electrolyte
hard-wrought
have nothing to show for something
homogeneous soil
IAE
immunosuppressed
inlet-air filter
Ioanninon, Limni
isolated species
iterative target transformation factor analysis
kan ch'i wu
karl-marx-stadt (chemnitz)
knock on wood
latest allowable time
logic ground
magnesia green
mature stream
Methocabal
Molinos, Miguel de
monthly series
Muntanitz
murasaki
nacac
neck of rib
nonlocality
noraml connection
oastler
overall charge-transfer efficiency
oversoft
ownership group
packet receive sequence number
phenyl methyl ketone
pipeline leak
PMP70
polynomial arithmetic
pure error
quick make-and-break contact
raiola
redundant rod
Reichsthaler
relative correction
sense of morality
single sweep tinning unit
Songhays
spring plant
staffmen
stone-root
Stouchsburg
stub-tenon
supernormals
teleometer
telltale board
testing cable
thionic acid
thoracotheca
titanium trifluoride
trade upon
transverse palmar arch
trigonal holoaxial class
two-way track
Vigna luteola
Vrosina
wachowski
wait at table
water tight riveting