[化] 丙二酸酐

malonic anhydride的用法和样例:

例句

  1. Technology for maleic anhydride production and the development of catalysts are described.摘要综述了顺丁烯二酸酐生产的工艺路线和催化剂研究发展。
  2. Maleic anhydride is the important organic chemical material, is the third largest acid anhydride behind the phthalic anhydride and acetic anhydride.顺丁烯二酸酐,简称顺酐或者马来酐,是重要的有机化工原料,是仅次于苯酐和醋酐的第三大酸酐。

AS IT IS 2015-03-31 Land-Use Changes May Increase Risk of Plague 土地用途的改变可能会增加灾祸的发生 Conversion of forests to agricultural use create habitats for small rats that carry disease such as plague. (Photo by Douglas McCaule

发表于:2018-12-16 / 阅读(45) / 评论(0) 分类 2015年VOA慢速英语(四)月

Black Death Older Than We Thought 黑死病比我们想象的要更早 From VOA Learning English, this is the Health Lifestyle report. 这里是美国之音慢速英语健康和生活方式报道。 For most, the word plague creates horrible images i

发表于:2018-12-16 / 阅读(51) / 评论(0) 分类 2015年VOA慢速英语(十一)月

WHO: Plague in Madagascar Could Spread 世界卫生组织:瘟疫可能在马达加斯加蔓延 From VOA Learning English, this is the Health Report. For much of 2014, health officials around the world have been guarding against Ebola virus. There is

发表于:2018-12-16 / 阅读(55) / 评论(0) 分类 2014年VOA慢速英语(十二)月

Two new cases of H7N9 Avian Influenza were reported in Zhejiang yesterday. One of those infected has reportedly already died. Meanwhile, hospital sources in Jiangsu are reporting the five patients confirmed to be infected in that province are not sho

发表于:2018-12-19 / 阅读(76) / 评论(0) 分类 英闻天下

Two new cases of H7N9 Avian Influenza were reported in Zhejiang yesterday. One of those infected has reportedly already died. Meanwhile, hospital sources in Jiangsu are reporting the five patients confirmed to be infected in that province are not sho

发表于:2018-12-19 / 阅读(62) / 评论(0) 分类 英闻天下

Todd: What do you think about the zoo? Dianna: I like to go to the zoo. I like to give all the animals names, like Bert the Giraffe, but I wish the animals didn't have to be in the zoo, but I think it is good when zoos save animals, and help to make

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 英语访谈对话

ENVIRONMENT REPORT - September 27, 2002: Chronic Wasting Disease in Animals in U.S. By Mario Ritter This is the VOA Special English ENVIRONMENT REPORT. Chronic wasting disease is infecting large anima

发表于:2019-01-02 / 阅读(88) / 评论(0) 分类 健康与环境

WHO: Pneumonic Plague Kills at Least 60 in DR Congo 世卫组织宣布在刚果民主共和国肺炎造成至少60人死亡 The World Health Organization (WHO) says it is sending an emergency team of

发表于:2019-01-03 / 阅读(408) / 评论(0) 分类 VOA2005(上)--环境科学探索

BARBARA KLEIN: Welcome to THIS IS AMERICA in VOA Special English. I'm Barbara Klein. STEVE EMBER: And I'm Steve Ember. This week on our program, we look at musical diplomacy, past and present. And we talk to an actor whose most recent role came from

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 2010年VOA慢速英语(六)月

By Caroline Sawyer Nairobi 17 August 2007 A United Nations agency report says 600,000 people in southern Somalia, including people in and around the capital Mogadishu, are suffering from severe malnutrition and nearly 300,000 of those require immedia

发表于:2019-01-16 / 阅读(144) / 评论(0) 分类 2007年VOA标准英语(八月)

AA: Im Avi Arditti with Rosanne Skirble, and this week on WORDMASTER 鈥?some ways to help you improve your memory. ELDH: We dont forget, we just havent learned it in the first place.RS: Thats Wendi Eldh. Shes a communications trainer who teaches mem

发表于:2019-01-18 / 阅读(101) / 评论(0) 分类 英语单词大师-Word Master

AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER some ways to help you improve your memory. ELDH: We don't forget, we just haven't learned it in the first place. RS: That's Wendi Eldh. She's a communications trainer who teaches m

发表于:2019-01-18 / 阅读(70) / 评论(0) 分类 英语单词大师-Word Master

AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER: some ways to help you improve your memory. ELDH: We don't forget, we just haven't learned it in the first place.RS: That's Wendi Eldh. She's a communications trainer who teaches m

发表于:2019-01-18 / 阅读(92) / 评论(0) 分类 英语单词大师-Word Master

AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER some ways to help you improve your memory. ELDH: We don't forget, we just haven't learned it in the first place. RS: That's Wendi Eldh. She's a communications trainer who teaches m

发表于:2019-01-25 / 阅读(66) / 评论(0) 分类 词汇大师(Wordmaster)

UN Report Links Infectious Disease Outbreak in Congo to Environment 联合国报道称刚果流行病毒爆发与环境有关 A United Nations' environment official Monday said the recent outbreak of

发表于:2019-01-30 / 阅读(78) / 评论(0) 分类 VOA2005(上)--环境科学探索

HEALTH REPORT - Plague Outbreak in Eastern Congo By Cynthia Kirk Broadcast: Wednesday, March 02, 2005 I'm Gwen Outen the VOA Special English Health Report. Plague is an ancient disease that can be tre

发表于:2019-01-30 / 阅读(176) / 评论(0) 分类 健康与经济

BEIJING, May 30 (Xinhuanet) -- Chronic diseases, including heart disease, stroke, cancer, chronic respiratory diseases and diabetes, are the leading cause of mortality in China, representing 85 percent of all deaths, said a senior health official. Ko

发表于:2019-02-07 / 阅读(110) / 评论(0) 分类 英语新闻

今天我们要学的词是chronic。 Chronic, 长期的,慢性的。在美国, Some 40 million Americans suffer from chronic sleep problems, 大约有四千万美国人睡眠长期有问题。很多美国人都患有糖尿病、高血脂、高血压

发表于:2019-02-07 / 阅读(95) / 评论(0) 分类 英语单词荟萃

AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER some ways to help you improve your memory. ELDH: We don't forget, we just haven't learned it in the first place.RS: That's Wendi Eldh. She's a communications trainer who teaches me

发表于:2019-02-14 / 阅读(199) / 评论(0) 分类 英语单词大师-Word Master

SYDNEY, Aug. 5 (Xinhua) -- The Western Australian Government announced on Friday that 14 new substances linked to the manufacture of the synthetic drug Kronic would be banned from Friday midnight. The State Mental Health Minister Helen Morton told th

发表于:2019-02-19 / 阅读(98) / 评论(0) 分类 英语新闻
学英语单词
2-amino-9-p-aminophenyl-acridine
afma
Africanoid
amalgam electrode
anthridal cell
anti-cosmopolitanism
applaud for
arbitrated rate of exchange
at-home day
automotive products
backing of wall
be stumped
benzol-keton dewaxing process
bionaire
bookcrossed
Buyukkaristiran
car air conditioner
care nought for
chaetodon wiebeli
check_modules
coil tube bracket
communication beyond mining area
concrete breaker
crashiest
current-outlay cost
dat drive
determinable income
Dioumara
earth-moving plant
ecomanagement
ectotrachea
emulsion resolving
Engelbostel
field independence style
floormate
Gamo Gofa Kifle Hāger
genus Stenotomus
glancing collision
gm-cfc
gravimetric filling machine
greater celandines
Harry Houdini
hydro-quebec
incremental speed governor droop
intracranial cavities
jassamines
Kamwenge
keysmiths
leveraged market
Liri River
Lukhovitsy
Maidstone
marginal tooth
maximum oscillating stroke of table
MESAR
methane inhibitor
methbrom
miskitu
muffinman
nadezhda
next state selection
norm of equity
off line working
Open Electronic book Forum
optimization procedures
Orchidantha insularis
partition data set compression
periodic acid method
phase velocity filtering
phenol antioxidant
photo-composing machine
Pnom Penh
portion-control
posteriorizing
programmable data generator
quiescent stat
ruhnke
samgyetang
scram pilot valve assembly
sensual
sibljack
Sidi Khaled
skyrme
spersed
spigot density test
stay right where you are
structural gene(jacob & monod 1959)
Sulaymānīyah, Liwā'
surface-active material
tetraphyllous
thwarter-ill
tolleygunge
Tolstoyan
trufflette
Tsintsabis
undersaturated condition
Uzunkuduk
vena umbilicaliss
wave record
welfare worker
wild variety
wood-fired