[计] 抽样单元

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(129) / 评论(0) 分类 VOA2003(下)-环境与健康

[ti:] [ar:] [al:] [by:] [00:01.00] Late At Night, Do You Turn Off Your Cell Phone? 今夜不关机 [00:08.22]Today, my friend asked me a question. [00:11.17]At night, do you turn off your cell phone? [00:14.78]If you dont, whom do you leave it on for

发表于:2018-12-26 / 阅读(89) / 评论(0) 分类 温馨夜读

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(106) / 评论(0) 分类 国家地理2008年

QC procedure 品管流程 What issues do we need to address to work out new QC procedures? 在制定新品管流程之前,有哪些問題必須先處理? quality standard 品質標準 This year, Metro Factory experienced a noticeable decline in q

发表于:2018-12-31 / 阅读(126) / 评论(0) 分类 商务英语必备1000字

The girl would turn her cell phone off and put it by her photo on the desk everynight befor going to bed. This habit had been with her ever since she bought the phone. The girl had a very close boyfriend,when they couldn't meet ,They would either cal

发表于:2019-01-02 / 阅读(62) / 评论(0) 分类 每天一点英文

1.audit 审计 2.attestation 鉴证 3.credibility 可信赖程度 4.audit of financial statements 财务报表审计 5.agreed-upon procedures 执行商定程序 6.high levels of assurance 高水平保证 7.compilation 编制 8.reliability 可靠性 9

发表于:2019-01-03 / 阅读(114) / 评论(0) 分类 财会英语

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(102) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(69) / 评论(0) 分类 VOA标准英语2008年(五月)

1.Bending 弯曲 A: What kind of parts do you usually need to bend? B: Tubular parts or stampings. A:什么样的零件一般需要进行弯曲加工? B:管状零件或冲压件。 2.Cycle time 工作周期 A: What is the cycle time of the injection molding machine? B: Three

发表于:2019-01-21 / 阅读(66) / 评论(0) 分类 天天商务口语

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(90) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(88) / 评论(0) 分类 VOA常速英语2008年(四月)

发表于:2019-02-01 / 阅读(95) / 评论(0) 分类 财会英语

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(206) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(194) / 评论(0) 分类 趣味英语

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(103) / 评论(0) 分类 VOA常速英语2007年(十二月)

It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th

发表于:2019-02-17 / 阅读(78) / 评论(0) 分类 阅读空间

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(89) / 评论(0) 分类 实用英语

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(149) / 评论(0) 分类 英语新闻

left-skewed 左偏 negative-skewed 负偏 right-skewed 右偏 positive-skewed 正偏 contingency table 列联表 sampling distribution (of a statistic)(某个统计量的) 抽样分布point estimate 点估计值 point estimator 点估计式 unbiased

发表于:2019-02-18 / 阅读(86) / 评论(0) 分类 英语口译

Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti

发表于:2019-02-24 / 阅读(90) / 评论(0) 分类 阅读空间
学英语单词
Andronaq
arels
Atchane, Hamadet el
athans
atmoclast (atmoclastics)
backshishing
bankrolling
bebinca
belka
below-threshold laser state
benzoylguaiacol
Big L.
bioinformatical
bluish-white
cargo permeability
coffee
coloraturas
conductive glass
cooling filter
CPT invariance
dearworth
descriptor base
Deutzia taibaiensis
discontinuous film
drink sb's health
Duo-Tang
enforced stability flight control
engineering institute
Eykman's depressimeter
F.O.R., f.o.r.
favreau
feature-based reverse engineering
fill and kill
filmzines
fishbourn
friction roll
gang-slitting shear
gasifying
ginchy
Grossenhausen
gub
Haicheng talc
harmonic analyzer
heads of agreement
heavily faulted crystal
height diameter ratio of a vawt
Hewitt Lake National Wildlife Refuge
Hiptage minor
Hoxha, Enver
hydroxycamptothecine
Hübingen
imethylglyoxime
in-house literature
lacuna cf cornea
land feature
lend out
light armoured vehicle (lav)
light rail rapid transit
literary criticism
logical swapping
maintenance monitor panel
mantle of green
Matagorda Bay
meningovascular neurosyphilis
minimum detectable activity (MDA)
molecular level
monofier
monomaniac
mouse-colored
musculo-intestinal
narrow-row planting
navigation service
nitrosyls
noise inside the railroad car
non-explosion-proof motor
non-qualifying annuity
normal grid
nuclear magnetisation
oil herbicide
opinion-poll
overlapping spur
oxycalorimete
petit-points
plexor
polycythermia
population cluster
precardium
premium grade material
primitive knot
print member
queer-bashing
quoiter
reciprocal concession
released mineral
spider plant
standing paste
steam transformer
system of planned management
third circle goniometer
tir
tocofibrate
twenty-oneth