唾液酸碱

[00:29.84]...刮脸 ...shave. [00:32.72]好 OK. [00:35.88]那个,过得很愉快,我们以后再见 Well, this has been lovely. Lets do it again sometime. [00:40.00]- 什么? - 很快,再见 - What? - Soon. Bye. [00:46.64]那个... So... [00:

发表于:2018-11-30 / 阅读(214) / 评论(0) 分类 听电影学英语-足球尤物

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(279) / 评论(0) 分类 (科普英语)Earth and Sky

There is one thing that everyone on earth has in common. We all live, eat and breathe within the human body. For two years I’ve been exploring this unique dwelling place. I want to show you what I'v

发表于:2018-12-07 / 阅读(150) / 评论(0) 分类 生命物语

This is the VOA Special English Health Report. Countries across Asia and beyond are reporting small amounts of radiation from the disabled nuclear reactors in Japan. But officials say these levels are not a threat to public health. On Tuesday, Chines

发表于:2018-12-07 / 阅读(174) / 评论(0) 分类 2011年VOA慢速英语(三)月

Broadcast: Jan 21, 2003 U.S. researchers have discovered another breast cancer gene that may provide a new point of attack against the disease. The 1) molecule is common to many types of breast cancer

发表于:2018-12-08 / 阅读(149) / 评论(0) 分类 VOA2003(上)-科技先知

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(324) / 评论(0) 分类 知性英语

A passionate kiss shares much more than intimacy. A single 10-second smooch can transfer tens of millions of bacteria from one partner to the other. Thats the finding from a study in the journal Microbiome. [Remco Kort et al, Shaping the oral microbi

发表于:2019-01-02 / 阅读(95) / 评论(0) 分类 英伦广角

Basal lamina - a term used to describe the different layers which make up the basement membrane. These different layers of the basement membrane, the lamina lucida and lamina densa are only visible wi

发表于:2019-01-03 / 阅读(168) / 评论(0) 分类 医务英语

Glucomannan(Konjac Root P.E.) 葡甘露聚糖 Glycyrrhetinic acid 甘草次酸 Glycyrrhizic acid 甘草酸 Gossypol 棉酚 Gotu Kola P.E 积雪草提取物 GRAPE SEED EXTRACT POWER(Grape seed P.E) 葡

发表于:2019-01-03 / 阅读(154) / 评论(0) 分类 医务英语

Microbiology - the study of the microscopic forms of life. Microfilaments - are the smallest filaments of the cytoskeleton. The filaments are made of hundreds of actin molecules, stacked in a line. Th

发表于:2019-01-03 / 阅读(147) / 评论(0) 分类 医务英语

Paracrine - cell messengers also called cytokines which are locally acting, produced by neighbouring cells or the extracellular matrix, as distinct from as distinct from endochrine or hormonal messeng

发表于:2019-01-03 / 阅读(203) / 评论(0) 分类 医务英语

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(155) / 评论(0) 分类 医务英语

Planktonic - a form of life style in which an organisms floats freely in a fluid without significant attachment or association with other living forms. Plaque is a film of bacteria in a matrix of sali

发表于:2019-01-03 / 阅读(188) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy

发表于:2019-01-08 / 阅读(164) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 Scientific American(一)月

New Malaria Vaccine Passes Safety Test The fight against malaria may have taken a promising step forward with the latest tests of a new kind of vaccine, which aims to keep people healthy and prevent the infection from spreading. Most malaria vaccines

发表于:2019-01-13 / 阅读(128) / 评论(0) 分类 VOA标准英语2011年(九月)

According to Israeli scientists, tearful women are a turnoff to men. But how do women feel about men who cry? Researchers are soon to begin testing how women react to chemicals contained in the tears of men. Our reporter Li Dong has the details. Natu

发表于:2019-01-19 / 阅读(157) / 评论(0) 分类 世界各地新闻集锦

LINDA WERTHEIMER, HOST: In Nashville this weekend, there's an exhibition of masks, not the kind that are used to hide, disguise or play dress-up. These have been worn by people with head or neck cancer. The plastic and mesh masks are used during radi

发表于:2019-01-24 / 阅读(155) / 评论(0) 分类 英语语言学习

By Greg Flakus San Antonio, Texas 13 October 2009 Dengue carrying mosquitos According to the World Health Organization, there are around 50 million cases of dengue fever around the world every year. About two and a half billion people, two fifths of

发表于:2019-02-09 / 阅读(130) / 评论(0) 分类 VOA标准英语2009年(十月)

Saliva Protein Might Inhibit Intestinal Anarchy 唾液蛋白可能抑制肠道无序状态 Every day, you produce one to two liters of spit. It kick-starts digestion and helps you swallow. And it helps prevent bacterial infection in your mouth. 每天,

发表于:2019-02-14 / 阅读(118) / 评论(0) 分类 2018年科学美国人3月
学英语单词
18-hydroxy-11-deoxycorticosterone
Aasynchronous transmission
ability to bay
adjustable end stripping plier
aileron filler
Asu-ECT
bardic
be discharged from prison
Bertrand curve
between-class distance
blear
bromomoacetamide
bucket spinning
bun divider
butylated hydroxytoluene
byeline
Cannon theory
chloroplatinate pilocarpidine
common sense
constancy
constrain proportions
contractual provisions
corpus spongiosum penis
Croatocentric
delay action circuit breaker
depository nominee
derris dust
diencephalohypophysial apparatus
direct exchange interaction
distinctive
DL-Xylose
DMA
dog rocket
dogsbody,dog's-body
double sided/double density disk
electroluminescent display
erectile-dysfunction
exspoliation
fanheads
fasciculus dorsalis
first order autoregressive scheme
front-mounted radiator
gelencephalon
gerashchenko
ghost knifefishes
Ginny
grandiflorum
heats of formation
highly-cited
homotypic division
HPMC
hull strained
in profusion
index case
interneurofilament
Ipomoea wangii
kanton island
Khot'kovo
kibit
labial pit
labipalp
linguistic model
luff up
mean flow rate
mechanical self starter
mechanization of operation
medium-power satellite
mental and physical health
misteriosa
multiple-output network
multipolar neuron
original rough-cast form
pain sense
phase of cell division
phosphor material
positronia
print attribution
readee
red dye
remote-manual startup
renouk
Rio Grande City
sandved
sawtooth crusher
sea-going ships
senomanian series(epoch)
siphoniferous
slauth
sunscoop
tagging off
Thermofilum
turcios
unentrenched
untitheability
urban-renewal
urechitoxin
voucher schemes
webopedia
wet float
wheat take-all
yuo
zero-coupon bond