音标:[ˈeθil ɡru:p] ;
乙基
词型变化:名词复数形式 : ethyl groups

ethyl group的用法和样例:

例句

  1. The ethyl groups replace oxygen in the silicate ion chains, creating a solid but crumbly silicone polymer.乙基会取代硅酸盐离子,形成一种硬而易碎的硅树脂聚合物。
  2. A linear sweep stripping voltammetry method for determination of ethyl vanillin in food samples was developed.报道了食品中乙基香兰素的线性扫描溶出伏安测定方法。
【近义词】
  • ethyl乙基(含四乙铅的汽车燃料...

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(69) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(62) / 评论(0) 分类 VOA双语新闻 2014年1月

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(56) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(60) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(53) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(68) / 评论(0) 分类 TED演讲教育篇
学英语单词
A-weapon
aidyrlite
alk.
amorette
arnagas
bending moment envelope
bill-beetle
black tais
blood-sized
breakdown of a family
bubbletops
bus-bar fault
capacity current
centimo
chilblains
citrullinuria
Commodus, Lucius Aelius Aurelius
computer-aided page make-up
conical shell course
current account surplus
delay of shipment
demoted
Dinophysiaceae
distinguish from
duses
entrance loss
eocylosis
exagram
family planner
fingerscanning
frameless construction
have hard ears
Heber
heterochromatic magnitude
high tenacity viscose fibre
I.Min.E.
ice clause
ilicicolin
immunotoxin
in excess of production capacity
integrating measuring instrument
intensity modulation of semiconductor laser
intracranial subarachnoid hemorrhage
latered
leaf armor
lidocaine
limanda ferrugineas
local-oscillator tube
locking manoeuvre
maximum trace amplitude
menticirrhus undulatuss
mixture colours
mobile digital video broadcasting
modeling on
N. D.
next-to-last
nooks and cranniess
not look back
nutrient artery of the fibula
offset wave
oilmill
oobladong
opisthograptis punctilineata
paco
particle-beam weapon
pattern representation
pelvic hammock
phonite (nepheline)
positive chronotropism
prepacking treatment
primary branched amine
progresso
Proto-Yeniseians
publike
pulvis tragacanthae compositus
regiones dorsi
regular annuity
Riggs' disease
ruggeris
salt-bearing rock
SATCOM
secondary accent
Seven Mile Cr.
shake sth up
skydive
snowwoman
suleimenov
sump water train
Sveti Martin na Muri
table of trigonometric function
tannics
target chemistry
tax on licenses
Tiliaceae
tip-toed
tirf microscopy
tricellula inaequalis
two-way alternate mode
uniform thermal-neutron source
untold wealth
vertical component effect
voice-recording