活泼氢原子

BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely

发表于:2018-11-28 / 阅读(467) / 评论(0) 分类 疯狂英语2001年

A Century of Memories (1940-1949) On the first Sunday in December 1941, Americans were doing what Americans did on any normal Sunday.

发表于:2018-11-28 / 阅读(377) / 评论(0) 分类 疯狂英语2003年

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(343) / 评论(0) 分类 VOA2003(上)-科技导航

雅思听力场景词汇:化学词汇 在雅思听力考试场景中,化学相关的场景的词汇较为生涩,平时生活中可能也运用得比较少,以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

发表于:2018-12-19 / 阅读(375) / 评论(0) 分类 雅思英语

Hyaluronic acid - the largest glycosaminoglycan known, it plays an important role of restricting the flow of water in tissues, particularly in synovial fluid where it acts as a lubricant.. Hydrogen bo

发表于:2019-01-03 / 阅读(273) / 评论(0) 分类 医务英语

Ecological balance - astable balance in the numbers of each species in an ecosystem. In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different or

发表于:2019-01-03 / 阅读(523) / 评论(0) 分类 医务英语

Covalent bond - a strong bond between atoms formed by sharing outer electrons. When an atom has 8 outer electrons it is stable. Those which naturally have 8, like neon and argon gasses are quite unrea

发表于:2019-01-03 / 阅读(368) / 评论(0) 分类 医务英语

This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound

发表于:2019-01-08 / 阅读(363) / 评论(0) 分类 Scientific American(六)月

This is Scientific American -60 seconds science. Im Cynthia Graber. This will just take a minute. A coal mine can degrade its local environment. But fungus may inadvertently help clean up the mine with its own waste products. Researchers worked with

发表于:2019-01-08 / 阅读(381) / 评论(0) 分类 Scientific American(七)月

This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the

发表于:2019-01-08 / 阅读(362) / 评论(0) 分类 Scientific American(七)月

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

发表于:2019-01-11 / 阅读(296) / 评论(0) 分类 阅读空间

HEALTH REPORT – December 4, 2002: Test Warns of Heart Attack Risk By Jerilyn Watson This is the VOA Special English Health Report. Since the nineteen-fifties, American doctors have tested their pati

发表于:2019-01-11 / 阅读(369) / 评论(0) 分类 健康与环境

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(333) / 评论(0) 分类 英语口译

英语美文-主动与被动语言的重要性 语言是表达自我,交流十分重要的途径。一个人的语言能传达很多信息,包括一个人的性格,思维,态度,生活环境,经历,职业等等。很多时候,我们作为

发表于:2019-01-17 / 阅读(280) / 评论(0) 分类 卡卡课堂早餐英语

The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

发表于:2019-01-29 / 阅读(300) / 评论(0) 分类 万物简史

Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pounds each. Now scientists have used forensic techniques to clear local geesethe per

发表于:2019-01-30 / 阅读(296) / 评论(0) 分类 60秒科学

HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi

发表于:2019-01-30 / 阅读(369) / 评论(0) 分类 健康与经济

C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley

发表于:2019-01-31 / 阅读(322) / 评论(0) 分类 VOA标准英语2010年(三月)

俗话说:一母生九子,九子各不同。这句话在我邻居家孩子的身上体现得淋漓尽致。大女儿心灵手巧,做什么像什么;而二女儿却刚好相反,总是笨手笨脚。All thumbs就用来形容她这种笨手笨脚

发表于:2019-02-06 / 阅读(273) / 评论(0) 分类 实用英语

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言,看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

发表于:2019-02-19 / 阅读(299) / 评论(0) 分类 英语口语
学英语单词
aburden
adipose glands
antineuritic vitamin
appointment calendar
artesian aquifer
Aryan
autoconnected transformer
automatous automobile
bellevill washer
Black Russians
calibrating voltage
capital requirements
catechus
cement iron
CH2
cinesiotherapy
cousin-in-law
crown closure measurement in aerial photo
crust-derived
darkon
desubstantialize
Doing is better than saying.
Domke honeycomb joint
dopiness, dopeyness
enjoyse
environmental consequences
epoxylignan
Ericsson, Leif
Eritrichium angustifolium
excessive shock
famon
fan talus
fcss
Feno, C.di
financial turbulence
fine by me
flange stripper guide
free running revolutions
friction roll
general discharge
geolifluction
grinding zone
harmful constituent
hat-peg
hippocratic angina
hysterical type
IIT (incident investigation team)
inflammable mixture
knock fuzzy control
kraftwerk
language-code
limited block
Lorenz constant
mat-forming
medium-level language
mine car loader
motorogerminative
mucous colic
multi-agency
mus domesticus brevirostris
my worship
neck-breaking
Neottianthe ovata
nisbets
oblatration
oblique pentagonal prism
ogygioses eurata
Ommaya reservoir
overproductivity
Paralac
pneumonoconiosis
procedure words
Prunelli-di-Fiumorbo
quality latitude
radiation-type timbering
radioactive tracer method
radiopaque medium
ratio of living area
relessor
remarry
retrocurvature
sealed circuit
seven layer model
shows through
snap angle
spirited
springliker
stickballers
synchroshifter
telemetry control and monitor
test ranges
TGCS
three piece
three-toed sloths
underpriming
velocity estimation
verdelots
weep(ing)
wing-tip tail light
with the aim of
xcvr (transceiver)