[医] 唾液淀粉酶, 涎液素

[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(304) / 评论(0) 分类 听电影学英语-足球尤物

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(251) / 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(241) / 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(244) / 评论(0) 分类 VOA2003(上)-科技先知

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(152) / 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(230) / 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(221) / 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(298) / 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(215) / 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(269) / 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(225) / 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(253) / 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(181) / 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(224) / 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(246) / 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(175) / 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(174) / 评论(0) 分类 2018年科学美国人3月
学英语单词
acceptress
action for compensation for loss
all clued on
aluminized method
andrologia
angle lapped specimen
ardmona
Asplenium ruta-muraria
atlas of tidal stream
az zafir
backshooters
ball-flowers
barrier to infrared radiation
BDCL
bean-counter
beating him
bermuda rigs
blind point
breviquinone
bug juices
bushelful
checkbook diplomacy
chlorknallgas
cobalt lead crystal glass
compound gasket
copying ink
current indicator lamp
deep-uv
deftly
degaussing range buoy
eesi
electronic belt milling machine
European foul brood
feed source
flatile
flow variable
friolera
Gentiana pedata
get a move on
glass reinforced plastic lifeboat
gollying
government guaranteed obligation
gross shrinkage
ground power unit (gpu)
hamsoken
happy accidents
Harriott L.
hi-lo index
Homs
hot date
Hotchin
hyperopic compound astigmatism
imitation silk process
inactuating
inbosom
inter-county
intra-uterine dislocation
involute system
Jackstown
kiln-burning
labelled data stream
legum
Ljubelj (Loiblpass)
mean relative humidity
mid-ocean-ridge
modularized receiver
Mokhsogollokh
moral decision making
nonsynaesthetic
open-cycle throttling refrigerator
oxyopes macilentus
personal dose limit
previous access mode
pulse-integrating detector
reactor fuel grid position
readjusting gear
record end flag
reliers
reperceptions
sannyasin
spraid
subscenes
superior common ligament (or dorsal longitudinal ligament)
supervisory memory
surface cracking
take a liking to
temperature-induced
thermobarograph
triple features
tumens
Ulidiidae
ultimate product
unbattlemented
Unix time
usable storage
V.P.P.
volcanic skeleton
well away
wood sash
X-ray equipment
xyrophobic
zoophagy