氢温标

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(320) / 评论(0) 分类 新东方背诵文选

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条,都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(204) / 评论(0) 分类 太阳科普

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(194) / 评论(0) 分类 VOA2003(上)-科技导航

US Navy Lab Turns Seawater Into Fuel 美国海军实验室成功将海水转变成燃料 For centuries, alchemists have tried to turn lead into gold. That transmutation has long been proven impossible, but another similar dream - turning water into f

发表于:2018-12-08 / 阅读(142) / 评论(0) 分类 VOA标准英语2014年(五月)

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(165) / 评论(0) 分类 英语演讲

Think arranged marriages are loveless? Not so, says psychologist Robert Epstein, a contributing editor for Scientific American MIND magazine. He spoke March 10 at the 92nd Street Ys Tribeca site in New York City: And theres even a study published in

发表于:2019-01-08 / 阅读(193) / 评论(0) 分类 Scientific American(三)月

Celsius 摄氏度 How cold is it outside? 外边多冷? There are two different temperature scales. 有两种不同的温标可以衡量。 There are celsius and fahrenheit. 它们是摄氏度和华氏度。 Who invented celsius? 谁发明的摄氏度

发表于:2019-01-10 / 阅读(206) / 评论(0) 分类 与美国小学生一起学英文第8册

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(190) / 评论(0) 分类 英语杂谈

Small-Scale Irrigation Nets Large-Scale Payoff A new study shows small-scale irrigation systems could boost farmers incomes by billions of dollars in sub-Saharan Africa and South Asia. The research was discussed at the World Water Week conference in

发表于:2019-01-13 / 阅读(267) / 评论(0) 分类 VOA标准英语2012年(八月)

今天我们要学的词是full-scale. Full-scale 全面的。The Trump administration announced new tariffs on China, a move that could escalate into a full-scale trade war. 川普政府宣布对中国实施新关税,此举可能会升级为全面贸

发表于:2019-01-26 / 阅读(167) / 评论(0) 分类 英语单词荟萃

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(161) / 评论(0) 分类 英语新闻

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(244) / 评论(0) 分类 农业与发展

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(197) / 评论(0) 分类 托福英语

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(206) / 评论(0) 分类 雅思英语

今天我们要学的词是 large-scale。Large-scale 大规模的。The police busted a large-scale drug-trafficking ring. 警察捕获了一个大型毒品走私集团。Russia said that it is not planning a large-scale evacuation of its citizens l

发表于:2019-02-07 / 阅读(203) / 评论(0) 分类 英语单词荟萃

JERUSALEM, May 8 (Xinhua) -- Israeli researcher Jacob (Koby) Scheuer, from the Tel Aviv University (TAU) School of Electrical Engineering, has developed a nano-scale gyroscope, the Ha'aretz daily reported Sunday. Scheuer developed a new optic-fiber n

发表于:2019-02-08 / 阅读(165) / 评论(0) 分类 英语新闻

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(207) / 评论(0) 分类 英语美文

今天我们要学的词是 large-scale. Large-scale 形容词,大规模的。South Korea and the United States kicked off large-scale joint aerial drills on Monday. 韩国和美国星期一开始举行大规模联合空中演习。General Motors C

发表于:2019-02-16 / 阅读(194) / 评论(0) 分类 英语单词荟萃

9月16日是墨西哥馆日,墨西哥馆五颜六色的风筝森林吸引了不少人的眼球,你知道小小的风筝里有什么大学问吗?其实风筝也有很多种分类哦,一起来看看吧。 说到kite这个单词,这也许是我们

发表于:2019-02-18 / 阅读(222) / 评论(0) 分类 英语口语

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实,朝鲜成功的进行了

发表于:2019-02-18 / 阅读(143) / 评论(0) 分类 英语新闻
学英语单词
Agee, James
air coloured
albatrellus ovinuss
balance of international indebtedness
Ban Mai Mae Sam
beggar-my-neighbour policies
bop glasses
braccianti
Bynoe R.
campero
cardio-pulmonary function
cathode-ray tube spot scanner
cocksuckahs
consent
consent drcree
cortical dependency
corydalines
creative tension
de-electronating agent
demand for funds
demand loan
dfe
dibenzothiocarbocyanine
Dorchester County
eddycard memory
family guttiferaes
fascine dyke
firsthand
fix-it shops
florid-faceds
fluotitanate
freeze-framing
frothing unit
fuel-based
gemstone testing equipment
glandulae cutis
grounded base equivalent circuit
he'p
helium wind tunnel
himple
hydraulic erosion
hydroxybenzyl alcohol
Hypnodol
inclemently
injoie
iodine bisulfide
Kanatlarci
Kiikala
KIRIKIRI
Lagrange's equations
light-producing
liver and kidney
lobbyisms
log wood
long needle therapy
lysigenous duct
melissopalynology
metallomicroscope
molecule mechani cal wear
Moss Beach
negligibl
network meltdown
noelles
old ales
paraffin hoist
partes tensa
pathetizes
personal filing cabinet
PEVA
pheno-
pitra
platzman
poissonier
PSU (program storage unit)
Pteleos
puccinia incompleta
r-colouring
ratio of crushing
recklessly
recycling of nutrient
removable random access memory
rhumbs
ring-bark
rouches
Sacuunda
ship Doppler
Shoal L.
Sinus lactiferi
song-smith
space key
spirooscope
stringy selvedge
tananao group
theory of law as social engineering
thermoswitches
Thiazosulphone
torn-apart
tumbeler bolt
vibraculoid
wine thief
work statement
wormstall