[医] 季胺

quaternary amine的用法和样例:

例句

  1. Using lignin exstracted from papermaking black liquor as a raw material,the synthesis of a quaternary ammonium salt of lignin has been carried out.以从造纸黑液中提取的木质素为原料,合成木素季胺盐絮凝剂。
  2. Quaternary ammonium salts of bisamides and quaternary ammonium salt cationic surfactant of imi_dazoline were synthesized and the content of cations was determined.合成了双酰胺类季铵盐和咪唑啉型季胺盐阳离子表面活性剂,并进行了阳离子含量测定。

Congressional leaders are reporting progress today in talks aimed at fashioning a bailout of the country's financial markets. NPR's Debbie Elliott has more. Negotiations jump-started after House Republicans joined the talks. Minority Leader John Boe

发表于:2018-12-02 / 阅读(84) / 评论(0) 分类 2008年NPR美国国家公共电台九月

第三篇 内分泌系统 Section 3 Endocrine System amine precursor uptake and decarboxylation cell 摄取胺前体脱羧细胞 diffuse neuroendocrine system 弥散神经内分泌系统 endocrine gland 内分泌腺 endocrine system 内分泌系统 hormone 激素 hypophysis 垂体 ovary

发表于:2018-12-05 / 阅读(225) / 评论(0) 分类 医学英语

This is the VOA Special English Agriculture Report. The United States has urged China to accept new safety rules for its food and drug exports. American officials said the rules would include a new list of Chinese exporters. Agriculture Secretary Mi

发表于:2018-12-07 / 阅读(53) / 评论(0) 分类 VOA慢速英语2007年(五)月

1513 、 磁化电流 magnetizingcurrent 1514 、 磁性 magneticproperty 1515 、 磁场 magneticfield 1516 、 磁场强度 magneticfieldstrength 1517 、 磁漆;瓷漆 enamelpaint 1518 、 磁铁

发表于:2018-12-08 / 阅读(55) / 评论(0) 分类 英文名句短语

书表慢性病 续处方笺Chronic Illness Prescription Slip 慢性病 续处方笺Chronic Continuous Prescription 慢性病 续处方笺Refill Presriptions For Chroni Disease 诊断书Medical Certificate 挂号费Registration Fee 证明费Certifica

发表于:2018-12-12 / 阅读(108) / 评论(0) 分类 医学英语

This is the VOA Special English Agriculture Report. Melamine is an industrial chemical. So how and why did it get into pet food that caused kidney failure in cats and dogs? And what might be the risk to the human food supply? These are questions tha

发表于:2018-12-15 / 阅读(67) / 评论(0) 分类 VOA慢速英语2007年(四)月

A professor of public health with Peking University is holding his ground on downplaying the dangers of plasticizers and melamine at a liquor brand conference, but wants to apologize for making the comments. Professor Li Keji, sparked public anger af

发表于:2018-12-19 / 阅读(53) / 评论(0) 分类 英闻天下

The sex drug Viagra appears to cut the effects of stress on the heart by 50 percent, according to a report by researchers at Johns Hopkins University.The report shows that the drug, which is normally

发表于:2019-01-03 / 阅读(76) / 评论(0) 分类 奥运英语

Erythromycin,红霉素 Azithromycin,阿奇霉素 Clarithromycin,克拉霉素 Fluoroquinolones and their derivatives (e.g. levofloxacin),多西环素(如:脱氧土霉素) Tetracyclines (e.g

发表于:2019-01-03 / 阅读(81) / 评论(0) 分类 医务英语

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(320) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(315) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

This is Scientific American's 60-Second Psych, I'm Christopher Intagliata, got a minute? While at Stanford in the mid-1960s, One Flew Over the Cuckoo's Nest author Ken Kesey started adding a peculiar ingredient to his home-cooked venison stew--LSD. N

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(三)月

高考英语作文开头技巧大集合 一篇文章通常可分为三个部分,即开头、正文和结尾。这三个部分安排是否得体,直接影响到文章的质量。 文章的开头一般来说应尽量做到开门见山,用简单明白

发表于:2019-01-17 / 阅读(151) / 评论(0) 分类 英语作文

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(92) / 评论(0) 分类 世界各地新闻集锦

New Zealand mothers are having difficulty finding cans of baby formula in the supermarkets. Some supermarkets are limiting the number of cans to two per customer. The shortage may be because Chinese in New Zealand are buying cans of formula to send b

发表于:2019-01-27 / 阅读(86) / 评论(0) 分类 新西兰英语

The New Zealand dairy company, Fonterra, which has a 43% share in the Chinese SanLu dairy factory, is donating $8.4 million to charity in China. SanLu baby milk formula was contaminated with melamine. Other baby milk formula has also been contaminate

发表于:2019-01-27 / 阅读(59) / 评论(0) 分类 新西兰英语

Because the British were the most active in the early years, British names are predominant in the geological lexicon. Devonian is of course from the English county of Devon. Cambrian comes from the Roman name for Wales, while Ordovician and Silurian

发表于:2019-01-29 / 阅读(75) / 评论(0) 分类 万物简史

For more than a week, worried parents have crowded hospitals across the country, all hoping that urgent medical treatment will be enough to overcome the tainted milk thats in their child's system. While thousands of babies have become sick, thousands

发表于:2019-02-03 / 阅读(52) / 评论(0) 分类 英伦广角

An investigation has revealed six garment manufacturers in Shanghai have made school uniforms using toxic dye. The city's quality watchdog says it found aromatic amine dye in uniforms sold to 21 primary and middle schools across the city. China's nat

发表于:2019-02-14 / 阅读(87) / 评论(0) 分类 英闻天下

日本名护市市长开始竞选 TOKYO, Jan. 12 (Xinhua) -- Candidates started their official campaign on Sunday to compete for the mayor of Nago, an election which may affect the relocation of a U.S. military base in Okinawa. It will be a race betw

发表于:2019-02-19 / 阅读(93) / 评论(0) 分类 英语新闻
学英语单词
Actinodaphne pedicellata
activated reagent
Ahābād
answer extraction
astacoid rash
average monthly or period usage
boot-tag
bridle-bit
bring into
buxus harlandii hance
calamury
cation stain
chorionic villus sampling
chromaticity coefficient
clodacaina
coaxial shaft
cock fest
cockled yarn
combination starter
communication for command
compnet
construction(al) detail
continuous survey of the hull
crossplays
cuju
customer's credit rating
cytotoxic(killer)lymphocyte
day indicator friction
dead-mail office
dense index
dharavi
Dichocarpum arisanense
digital paper
dilivery of luggages and parcels
discriminating pricing
dived
dual evaporation
duck-ponds
electronic function generator
enriched compound
estimated time on route
fern-leaf
fial in one's duty
fluororubber
give sb something to talk about
Graeupner's method
guanylthiourea
halo langbeinite
herreman
hoegbomite (h?gbomite)
Hujirt
Hyndarin
hypsilophodont
insulating limiter
inverse-rate curves
jetting tool
Juniperus tibetica
Kamenets
kangaroo care
kick rocks
kismats
linkage guide tube
liquor benzalkonii chloridi
logfileoff
marchesa
metaplexis japonica makino
microcommand language
mock heather
modification breakdowns
MOOC
multiple-pulse
NCP
offright
outhalves
paella
postgendered
pourtraict
precipitation-exchange resin
pressurized gas
primary pulmonary lobule
process gas chromatograph
Pulosari
quadrature-axis subtransient open-circuit time constant
rectangular waveguide
Reykjanes Ridge
rotest
S.O. R.
Sanpower
sheathing material
snu snu
speed increasing gear pair
standards for college libraries
Starling's heart-lung preparation
super safety rod
Taiping
tenor guitar
terminal sensillum
the lowlands
the wrong man
thermonasty
twilight night
unauthorized absence