珀塞尔(①姓氏 ②Edward Mills, 1912-, 美国物理学家, 曾获1952年诺贝尔物理学奖)
(purcell 的复数)

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(326) / 评论(0) 分类 新东方背诵文选

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(159) / 评论(0) 分类 VOA慢速英语2008年(六)月

An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ

发表于:2018-12-16 / 阅读(167) / 评论(0) 分类 VOA标准英语2010年(十一)月

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(194) / 评论(0) 分类 2017年Scientific American(一)月

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2018-12-30 / 阅读(172) / 评论(0) 分类 单词解析速记

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(169) / 评论(0) 分类 原版英语小短文

Today I have a special show for you because it's September 24: National Punctuation Day, a holiday created by an educator named Jeff Rubin. To celebrate the day I had a punctuation contest and today's show highlights two of the winners. Other winners

发表于:2019-01-02 / 阅读(221) / 评论(0) 分类 英语语法 Grammar Girl

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(217) / 评论(0) 分类 英语小短文

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(211) / 评论(0) 分类 2011年VOA慢速英语(二)月

By Jim Malone Washington 23 June 2006 Political activists, frustrated by the polarized nature of American politics, have decided to do something about it in time for the next U.S. presidential election in 2008. --------------- Unity08.com screenshot

发表于:2019-01-13 / 阅读(289) / 评论(0) 分类 2006年VOA标准英语(六月)

'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the

发表于:2019-01-14 / 阅读(173) / 评论(0) 分类 VOA标准英语2011年(八月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(176) / 评论(0) 分类 VOA标准英语2013年(七月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(191) / 评论(0) 分类 世界各地新闻集锦

图片1 Wed like to introduce Sheena Purcell to you. She is a new friend of ours at Culips and she is super talented. In this Chatterbox episode, Sheena tells us a little bit about her experience as a jewelry designer and how she decided to start mak

发表于:2019-01-28 / 阅读(206) / 评论(0) 分类 英语博客-北美风情

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(219) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(236) / 评论(0) 分类 科技之光

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(161) / 评论(0) 分类 健康与经济

By Robert Berger Jerusalem 16 December 2007 An Israeli delegation is making an unscheduled visit to the United States amid disagreements over the recent American intelligence report on Iran. As Robert Berger reports from VOA's Jerusalem bureau, the v

发表于:2019-01-31 / 阅读(209) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Margaret Besheer New York 19 April 2008 Pope Benedict told American Catholic clergy and nuns on Saturday that the Church in the United States must work to overcome its divisions, saying this is a time of healing and purification, after the sexual

发表于:2019-01-31 / 阅读(208) / 评论(0) 分类 VOA常速英语2008年(四月)

By Jim Malone Washington 08 December 2006 President Bush and members of Congress from both political parties have generally welcomed the recommendations put forward by the Iraq Study Group headed by former Secretary of State James Baker and former C

发表于:2019-02-04 / 阅读(263) / 评论(0) 分类 2006年VOA标准英语(十二月)
学英语单词
annual assay
antisocordist
atmosphere temperature
barley covered smut
beam attenuation
blossom blight
boisei
bottomry and respondentia bonds
brain machine
broker's loan rate
byelaya tserkov (belaya tserkov)
caddying
canister purge line
cassioberry
castor-oils
cetrella
coarsest
coilspring
correlogram
cupp
currency house
editor-at-large
edvinson
endoangiitis
enrich the top-soil layer
Erlian
family Sphyrnidae
fanlisting
Feather-joint
flame resonance spectrometer
fleet
floating-point operation stack
fog detector
fusion-evaporation reaction
gear cone
go on board a ship
grid-current capacity
hare lips
heel height
herefordshires
homing procedure
horn of variation of flare angle
huang j?n ting
human and animal excreta
hyperkeratomycosis
hyponatr(a)emia
Indirect Collision
inspection note
intracistronic complementation test
inventory stock report
jump test
kringles
ktvu
lanceted
life of rotor
Mach hold mode
making headway
marriage-visa
melted wax bath
miltiple access sequential selection
morphologic correlation
moving die insert
NCARMD
nedved
negative color-separation
no reference
offset optical square
outer shielding
overdried
Pere Marquette R.
periphorium
phage type
phosphonic acid type resin
phrasings
Pirani
poher
precision meter
Presumption of Fault
proclination
pseudofluctuation
ratchet knife
rate of foreign exchange
relaxation allowance
repetition method
resources potentiallly exploitable
roentgenotherapia superficialis
round-bar
scheiner disc
shorter rail
split reticle
stable series
suction-cup
symphonic ballet
tetramerum
thread root
trespass on sth
type-faces
umbrella plants
unburden oneself to sb
valach
vermicular motion