[医] 戊酸戊酯, ш草酸戊酯

amyl valerate的用法和样例:

例句

  1. Hexanoic acid and n-pentanol reacted to form amyl hexanoate by using gallium sulphate as the catalyst.采用硫酸镓为催化剂合成己酸戊酯。

Mental Stimulation Might Cut Dementia Risk People who engage in mentally-stimulating activities over a lifetime have lower levels of a protein in the brain associated with Alzheimer's disease, a new study finds. That supports other research which sug

发表于:2018-12-16 / 阅读(95) / 评论(0) 分类 VOA标准英语2012年(二月)

What about sleep? In slow-wave deep sleep, our glial cells rinse cerebral spinal fluid throughout our brains, 关于睡眠呢?在慢波深度睡眠时,我们的神经胶质细胞冲洗着我们大脑中的脑脊液, clearing away metabolic wast

发表于:2018-12-18 / 阅读(92) / 评论(0) 分类 TED演讲国际问题篇

So what happens when amyloid plaques accumulate to this tipping point? 所以当淀粉样斑块积累到临界点后会发生什么? Our microglia janitor cells become hyper-activated, releasing chemicals that cause inflammation and cellular damage

发表于:2018-12-18 / 阅读(127) / 评论(0) 分类 TED演讲国际问题篇

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(101) / 评论(0) 分类 TED演讲国际问题篇

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a

发表于:2019-01-08 / 阅读(145) / 评论(0) 分类 Scientific American(三)月

VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Today we tell about Alzheimer's disease. One century after its discovery, the cause of the disease is still unknown. (MUSIC) VOICE ONE:

发表于:2019-01-11 / 阅读(96) / 评论(0) 分类 VOA慢速英语2007年(一)月

The latest developments in research into the most common form of dementia. Transcript of radio broadcast: 09 June 2008 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. VOICE TWO: And Im Bob Doughty. Today we tell abou

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 VOA慢速英语2008年(六)月

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today we tell about Alzheimers disease. More than a century after its discovery, Alzheimers disease is still destroying peoples bra

发表于:2019-01-12 / 阅读(138) / 评论(0) 分类 2011年VOA慢速英语(二)月

SCIENCE IN THE NEWS - A Possible Blood Test for Alzheimers Disease JUNE SIMMS: This is SCIENCE IN THE NEWS, in VOA Special English. Im June Simms. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today we tell about Alzheimers disease. More than a century

发表于:2019-01-12 / 阅读(115) / 评论(0) 分类 2012年VOA慢速英语(三)月

Drug Reverses Alzheimer's in Lab Mice Researchers working with laboratory mice have stopped the progression of a condition found in the brain of Alzheimer's victims. They've even reversed cognitive decline. But whether the discovery can translate to

发表于:2019-01-14 / 阅读(104) / 评论(0) 分类 VOA标准英语2012年(二月)

New research suggests a relatively simple blood test might make it possible to predict who is at a higher risk for developing dementia. The most common form of dementia is Alzheimer's Disease, and currently, it can only be definitively diagnosed in a

发表于:2019-01-14 / 阅读(128) / 评论(0) 分类 VOA标准英语2011年(一月)

MRI-like Scan May Help Identify Alzheimer's Alzheimer's disease normally gets a definitive diagnosis only after the patient dies, and an autopsy finds certain distinctive structures in the brain. Recently, though, scientists have been seeking some so

发表于:2019-01-14 / 阅读(119) / 评论(0) 分类 VOA标准英语2011年(八月)

喝茶在中国由来已久,而且有着深厚的历史文化,这不,本杰明讲得津津有味,从茶馆生活讲到茶馆艺术,这下罗拉可有的学了。 Listen Read Learn Laura: It's quite busy here. It's true that Chinese people love tea. Benjamin: That's for sure. You know that tea is

发表于:2019-01-21 / 阅读(155) / 评论(0) 分类 英语口语大赢家

Sleep. It's something we spend about a third of our lives doing, but do any of us really understand what it's all about? Two thousand years ago, Galen, one of the most prominent medical researchers of the ancient world, proposed that while we're awak

发表于:2019-01-24 / 阅读(151) / 评论(0) 分类 英语语言学习

HEALTH REPORT - New Method to Find Alzheimer's Disease By Jerilyn Watson Broadcast: Wednesday, February 04, 2004 This is the VOA Special English Health Report. A computer picture of a brain affected b

发表于:2019-01-30 / 阅读(133) / 评论(0) 分类 健康与经济

HEALTH REPORT - New Alzheimer's Drugs Tested By Cynthia Kirk Broadcast: Wednesday, August 04, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. Researchers say two experimenta

发表于:2019-01-30 / 阅读(91) / 评论(0) 分类 健康与经济

WASHINGTON, June 25 (Xinhua) -- Ryan Lochte edged Michael Phelps in the men's 400m individual medley at the US Olympic swimming trials Monday. Lochte took the lead on the breaststroke leg of the four-stroke event and held off Phelps in the closing fr

发表于:2019-02-06 / 阅读(141) / 评论(0) 分类 英语新闻

By Scott Bobb Johannesburg 19 October 2007 South African Reggae star Lucky Dube has been killed in an apparent car-jacking attempt. The 43-year-old musician was shot Thursday night in a suburb south of Johannesburg. Correspondent Scott Bobb reports f

发表于:2019-02-07 / 阅读(131) / 评论(0) 分类 2007年VOA常速英语(十月)

Private funeral held for Fawcett 福塞特的私人葬礼 A private funeral has been held for US actress Farrah Fawcett, who died last week of cancer. Her partner, actor Ryan O'Neal, was a pallbearer (抬棺者) Their son Redmond, who was recently jailed on

发表于:2019-02-08 / 阅读(164) / 评论(0) 分类 英语新闻

Let's begin by looking at what we currently understand about the neuroscience of Alzheimer's. 让我们先看看目前神经学上对老年痴呆的了解。 Here's a picture of two neurons connecting. 这是一张两个神经元连接的图。 The p

发表于:2019-02-13 / 阅读(121) / 评论(0) 分类 TED演讲国际问题篇
学英语单词
.bat files
agrille
ain r.
alumogel
ancient writings
attribute listing method
automatic concentrator
automatic detection system
beam gantry
blood-vessels
bogus soil
bulk of property
bungil cr.
candida antarctica
carmelizes
centralized telephone exchange
channel control
Chichibu
chingii
chrome acid
coincidence of heavenly qi
cold fusion reaction
convexity ratio
degree of confirmation
Dikoor
Disco light
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duode
eave tile with pattern
elephant's ear
f-18s
fabrications
fiber cement board
five pack
forgetting curve
fuel sink
full-disclosure
general insurance condition
global maritime SAR rescue plan
gomerette
Hainanecio
hard as a brick
heat pattern
Henri Bergson
hippuricase
hoopskirt
hydraulic turbine
i-ssryuen
ideamonger
incantatoes
international accounting standard committee
isothermic surface coordinates
jettisonable fuel tank
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line of conversation and action
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maija
manswears
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midmain
multi-jib cutter
munrow
Mérindol
Nazidom
nemer
nwan
Open System Interconnection Reference Model
other side of the coin
overall breadth
oxidative chlorination
partial thromboplastin time
pecten irradianss
pencreatitis
please the fate
polymorphic form
polyphon
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primordial broth
ptsr (posttraumatic stress reaction)
reincorporating
reproduce in
resin-rich area of composite
reversal of fortune
ribosome run-off
Richmond R.
sarcous substance
sinuate handwheel
slide key drive
smalite
stopclock
T-1
table reef
thermo-couple junction
to do the decent thing
transhippings
tuberculum gracile
ultraviolet reflectance
VLTV
water absorption meter