柄轴密封圈

Roses are my favourite flower. They are the perfect flower beautiful in every way. I love the shape of roses and their beautiful colours. Looking at them is like looking at a wonder of nature. The colours are so deep and pure. A white rose is the whi

发表于:2018-12-04 / 阅读(52) / 评论(0) 分类 听一分钟英文-R

Most college students in the United States choose their major, or main field of study for their degree, before or during their first year. For Saskia Fagan, making that choice was not easy. Fagan, who is now 31 years old, grew up in Takoma Park, Mary

发表于:2018-12-12 / 阅读(47) / 评论(0) 分类 2018年VOA慢速英语(一)月

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(62) / 评论(0) 分类 VOA慢速英语2008年(六)月

SCIENCE REPORT — March 27, 2002: New Stem Cell Study By Mario Ritter This is the VOA Special English SCIENCE REPORT. Researchers at an American medical center say special stem cells in normal human

发表于:2019-01-02 / 阅读(124) / 评论(0) 分类 科技之光

Rwanda Invests in STEM Education for Girls Yvonne Kevia is an 18-year-old high school student in Rwanda. She wants to become a chemical engineer. She enjoys doing experiments and taking careful notes in her high school laboratory in Kigali, Rwandas c

发表于:2019-01-02 / 阅读(94) / 评论(0) 分类 2017年VOA慢速英语(十二)月

HEALTH REPORT - New Embryonic Stem Cell Lines Developed for Researchers By Paul Thompson Broadcast: Wednesday, August 11, 2004 This is Gwen Outen with the VOA Special English Health Report. Researcher

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 健康与经济

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-09 / 阅读(78) / 评论(0) 分类 科技之光

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(109) / 评论(0) 分类 2011年VOA慢速英语(二)月

By Sabina Castelfranco Rome 20 January 2006 As concerns over the spread of bird flu increase, Italian police have stepped up controls at sites that could be at risk. Thousands of chickens and eggs wer

发表于:2019-01-13 / 阅读(115) / 评论(0) 分类 2006年VOA标准英语(一月)

President Bush says he will veto legislation that would relax restrictions on embryonic stem cell research. There is growing bipartisan support in Congress for changing those rules. 布什总统表示他将否决要求放松对胚胎干细胞研究限制

发表于:2019-01-19 / 阅读(64) / 评论(0) 分类 VOA双语新闻 Bilingual News

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(105) / 评论(0) 分类 世界各地新闻集锦

Im all for stem cell research. I know it is a huge issue at the moment. Lots of people dont like it. They say it is unethical and that it is playing God. Other people say we will create Frankensteins monster. Britain seems to be leading the world in

发表于:2019-01-24 / 阅读(59) / 评论(0) 分类 听一分钟英文-S

By Alex Villarreal Washington 28 February 2008 Adult stem cell therapy has successfully treated leukemia and other cancers for years, in the form of bone marrow transplants. A new study in the Journal of the American Medical Association [JAMA] finds

发表于:2019-01-25 / 阅读(244) / 评论(0) 分类 VOA常速英语2008年(二月)

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(119) / 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(124) / 评论(0) 分类 科技之光

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(211) / 评论(0) 分类 英语新闻

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(106) / 评论(0) 分类 VOA常速英语2007年(十二月)

Japan's government and the country's central bank took action Thursday to dilute the yen. The Japanese currencys strong standing against the dollar is making exports more expensive, hurting efforts to revive the country's moribund economy. After many

发表于:2019-02-18 / 阅读(91) / 评论(0) 分类 英语新闻

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(154) / 评论(0) 分类 英语新闻

今天我们要学的词是stem from. Stem spelled s-t-e-m, stem; and f-r-o-m, from. Stem from是源自,来源于的意思。The UN said Syrian government forces are responsible for most of the violence stemming from the country's unrest. 联合国表

发表于:2019-02-18 / 阅读(102) / 评论(0) 分类 英语单词荟萃
学英语单词
.wdb
accessory bone
Alabat
alpert bakable valve
arc-extinguishing
automatic reading machine
axial admission
axial leads
Bach flower remedies
bit encoding
blomia tropicalis
Bridger Peak
bucking transformer
C-chromosome
caretas
cattleguards
cefodizime
centre of flotation
cerebral revascularization
cnsha
commissionships
constant frequency control
controllable pitch screw
Cryptomonadida
disymmetric ischiopagus
DrScheme
Eldoquin
Estación Pamplona
exhaust pipeline
fistula colli congenita
flange body
food subsidies
genus ajugas
goldecks
haarlems
heavy-ion fusion system
high pressure impregnation
hunan
hydraulic orientation sub
hydride-dehydride powder
hypercator
impervious bed
internal fracture
international exchange
jet impact force
keratogenesis
lamellar martensite
lerk
liquid hydrogen fill-drain auto-disconnect coupler support mount
Mandapam
monoclinic crystal form
mooring jacket
multi-collimater
multilevel method
naval underwater warfare centers
nonfact
nosepicker
optical letterspacing
optimum nozzle
oxidation-inhibited grease
part(ly) cloudy
pestis Variolosa
Phariseans
pitsfords
plain ring
point something out
professional wrestling
quadruple screw motor ship
rat-like
real estate agencies
receive a trust
resistance transfer factors
rotation-of-sailing agreement
route checking
saiblings
sardye
saxtubas
search all subdirectories
search site
shittily
show willing
sodium carbon
sprayed furnace black
star burst
steel-string
strictly ergodic
synodus fuscus
take occasion to do something
tectal ridge
tendon drive
tertiary treatment of waste water
the civil law
to one's appetite
trichorrhexis invaginata
trochoidal wave
unilinx
Upemba, L.
uredo miscanthi-floriduli
wash one's hands with invisible soap
Wertheim's Ointment
wine-vat
Yashaltinskiy Rayon