醛基

aldehyde groups的用法和样例:

例句

  1. In contrast, switching the acylsilane functionality to an aldehyde, the radical cyclization failed.至于将矽基酮的部分换成醛基时,自由基反应则无法进行。
  2. The compound with three carbon atoms between two groups is the best for bactericide, those with less or more than three carbon atoms will be bad for bactericide.醛基之间有三个直链碳原子的化合物具有最强的杀菌活性,醛基之间少于或多于三个碳原子的化合物杀菌活性较差,甚至无杀菌活性。

THIS IS AMERICA - Girl Groups' in Rock Music By Robert Brumfield Broadcast: Monday, February 02, 2004 (THEME) VOICE: Welcome to THIS IS AMERICA, in VOA Special English. I'm Phoebe Zimmermann. In the l

发表于:2018-12-07 / 阅读(65) / 评论(0) 分类 This is America

On todays Moment of Science, well be sniffing our way through a controversial culinary conundrum: the great cilantro debate. 今天的《科学一刻》栏目,我们将来探讨一个有争议性的烹饪难题:关于香菜的大辩论。 Accordi

发表于:2018-12-28 / 阅读(68) / 评论(0) 分类 初学者听力文摘精选

Cilantro: Love It Or Hate It? On todays Moment of Science, well be sniffing our way through a controversial culinary conundrum: the great cilantro debate. According to scientists working at the Monell Chemical Senses Center, the smell of cilantro usu

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- English teacher Lida Baker in Los Angeles talks about improving English pronunciation by understanding the idea of thought groups. RS: Thought groups are something we don't even

发表于:2019-01-18 / 阅读(25) / 评论(0) 分类 英语单词大师-Word Master

By Claudia Blume Hong Kong 16 November 2007 Hong Kong-based human rights groups who recently returned from a fact-finding mission to the Philippines found that the frequency of extrajudicial killings in the country has gone down. Disappearances, howe

发表于:2019-02-08 / 阅读(53) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Noel King Kigali 19 October 2007 Congo's 2006 democratic elections were intended to usher in a new era of peace in the once war-torn nation. And while improvements have been seen in certain areas across the vast country, holdout armed groups in th

发表于:2019-02-08 / 阅读(101) / 评论(0) 分类 2007年VOA常速英语(十月)
学英语单词
adlavik is.
Ahmad Wāl
air adjust screw
Aptin
Badgley, C.
baj baj
bandjer pass
Bath Olivers
battleship curves
beauty-specialist
billfolder
biocharacteristics
brambleberry
burner carboning
cable duct bank
Carlantino
carpet pads
chemical agent
CMAAO
cold hobbing press
combustion spiral
condisciples
container freight station to door
control valve manual operating gear
cornaro
country bumpkin (scotland)
cuello
current-event
customs supervision and control
cyclogeny
defaulting on bonds
elevation angle couple unit
end to end test
environmental surveillance
game ball
gleter
good things
heat insulation window
helicteres augustifolia
high achievers
high-frequency plasma
Homalomena
Horn clause
hostile attributional bias
induced draft blower
inspection of flood defense
isochore maps
janegirl
javelineer
Kolitzheim
land oil exploitation
library science
liftbacks
liquid waste incinerator
live-out maid
makushita
marine forum
measure up to standard
metal-insulator
minimum operation mass
multiplicative numeral
musico
nail-clippings
Nanashigure-yama
netta rufina
nettle-leaved goosefeet
noradrenalin
normal modes
Oguchi'S disease
paludaments
parapoxvirus pseudocowpox
passes
put the breeze up
radial inward flow
range normalization
reactivity monitor
recoverment
refresher
reichardts
rhizophydium constantineanui
roadable
roubini
salvage depot
sealing alloy
self-sustained discharge
skimpole
soluble anode
spinning spool
spur formula
standard balance
starter homes
sternheimer effect
Sun River
tan-yard
test problem
total complement measurement
travelling rack
ultrabasic
villously
VTA (variable transfer address)
Walt
yankee imperialism