羧甲基纤维素

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(165) / 评论(0) 分类 Scientific American(六)月

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(三)月

Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are

发表于:2018-12-27 / 阅读(143) / 评论(0) 分类 英语时差8,16

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(179) / 评论(0) 分类 科技之光

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(177) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(203) / 评论(0) 分类 农业与发展

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(五)月

What you eat affects more than physical health. Two new studies have added to the growing evidence linking the stomach and the brain. In a report in the Proceedings of the National Academy of Sciences, researchers studied how junk food can trigger ad

发表于:2019-01-08 / 阅读(201) / 评论(0) 分类 Scientific American(十一)月

Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl

发表于:2019-01-09 / 阅读(158) / 评论(0) 分类 VOA标准英语2011年(四月)

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(173) / 评论(0) 分类 VOA2003(下)-环境与健康

FRITZI BODENHEIMER: This is SCIENCE IN THE NEWS in VOA Special English. I'm Fritzi Bodenheimer. FAITH LAPIDUS: And I'm Faith Lapidus. Winter conditions are affecting many countries in Earth's northern hemisphere. Winter brings cold weather and, with

发表于:2019-01-11 / 阅读(412) / 评论(0) 分类 2010年慢速英语(二)月

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(156) / 评论(0) 分类 2014年VOA慢速英语(九)月

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(191) / 评论(0) 分类 经济学人科技系列

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(156) / 评论(0) 分类 英语博客 A cup of English

The case for prenuptual agreements may have just gotten stronger: According to a new survey by credit-tracking company Experian, 16 percent of newlyweds admit they are hiding a financial account from their spouse. 婚前协议的案例与日俱增。信

发表于:2019-02-01 / 阅读(140) / 评论(0) 分类 实用英语

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(200) / 评论(0) 分类 2007年VOA标准英语(五月)

There are lots of different diets. On of them is called the low-carb diet. If you were on a low-carb diet you would eat... 节食方法有很多种,有一种叫做低碳水化合物饮食,若你就是这种情况,你会吃什么呢? a) less fish b) less pasta(意大利面条) c) les

发表于:2019-02-06 / 阅读(291) / 评论(0) 分类 六分钟英语

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(177) / 评论(0) 分类 英语博客 A cup of English

台湾籍旅美老师今天交给我们的句子是: It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂:多摄取低脂肉类、健

发表于:2019-02-22 / 阅读(160) / 评论(0) 分类 留美老师带你每日说英文

STEVE INSKEEP, BYLINE: Some people who watch what they eat may be overlooking the most important things. Counting calories is a bit too simple. Cutting carbs is a bit too hard. So what can you do? NPR's Allison Aubrey has a different strategy. ALLISO

发表于:2019-03-04 / 阅读(214) / 评论(0) 分类 2019年NPR美国国家公共电台1月
学英语单词
a crossed cheque
ACINT
all-optical switching
allori
amplification limit frequency
anaktuvuk
antiprofanity
antisnoring
AOGA
aphemias
Aras an Uachtaran
arrival and departure track
attitude discrepant behavior
automatic channel switch
Battey's operation
benjamin disraelis
beta-N-Acetylgalactosaminidase
bisemic
black-body radiations
bowling creases
built-in place components
bus interface gate array
c.-in.
car(-)hopping
carving instrument
chausse-trap
cladosporium astragali yamamoto et iwayama
cloud density
code for erection and inspection
coffee cups
colitas
corporases
cross section for elastic scattering
crystal glasses
cyclochoroiditis
daphnids
derring-do
dickins
dicranlolma kwangtungense chen
dimascio
disease resistance?
earth electrode line
edge case
extra sample performance
fast period
filaceous
filitannic acid
folipex
fridging
green petroleum coke
historical-mindedness
hopper scale
hot jet welding
international division structure
L-leg
light chestnut coloured soil
locomotive testing bed
low-G centrifuge
make a united effort
Maleans
manual binder
masonry arch
massecuite mixer-distribution
measuring pad
molinete
Navstar Global Positioning System
olefinic polymerization
oligosymptomatic
oscillatron
Parasificin
pathoklisis
photoelastic method
phyllachora indocalami
Phytometra chrysitis
Portgordon
radial top-slicing
remodify
reperch
roughouts
RVC
sarbin
sarcobiont
scarpment
Shauk-kon
side reaction coefficient
simple formatted file
solen exiguus
stand-alone production system
start date range
stodgiest
sueb
synchrostat regulator
talana
Thermoplasmatales
thin-film lubrication
three square scale
traffic links
trinucleotides
turning ability
water-based epoxy anti-rust coating
went to excess
Zwicky galaxy, Zwicky object