铯射束时间标准

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(171) / 评论(0) 分类 数学英语

Lesson 37:The Westhaven Express 开往威斯特海温的快车 Listen to the tape then answer the question below. 听录音,然后回答以下问题。 What was the mistake the author made? We have learnt to expect that trains will be punctual. Afte

发表于:2018-12-08 / 阅读(672) / 评论(0) 分类 新概念英语第三册

Lesson 37 The Olympic Games 奥林匹克运动会 First listen and then answer the question. 听录音,然后回答以下问题。 When was the last time this country hosted the Olympic Games? The Olympic Games will be held in our country in four ye

发表于:2018-12-08 / 阅读(317) / 评论(0) 分类 新概念英语第二册

Isaac Newton: One of the Worlds Greatest Scientists SHIRLEY GRIFFITH:This is Shirley Griffith. STEVE EMBER: And this is Steve Ember with the VOA Special English program, Explorations. Today we tell about one of the worlds greatest scientists, Isaac N

发表于:2018-12-16 / 阅读(125) / 评论(0) 分类 2011年VOA慢速英语(六)月

I'd like to start with a short story. 我想先讲个故事。 It's about a little boy 有个小男孩 whose father was a history buff 他父亲是个历史爱好者, and who used to take him by the hand 常牵着他的手 to visit the ruins of an

发表于:2018-12-18 / 阅读(113) / 评论(0) 分类 TED演讲科技篇

1.Airport pick-up 接机 A:Anybody picks you up at the airport? B:My secretary arranged it. I just hope the chauffeur will show up. A:有人去机场接你吗? B:我的秘书安排了,我只是希望司机能到。 2. Book a hotel 订酒店 A: Who booked the hotel for you? B

发表于:2018-12-26 / 阅读(110) / 评论(0) 分类 天天商务口语

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(153) / 评论(0) 分类 美国英语听力80篇

by Mignon Fogarty Many parts of the world are moving from standard time to daylight-saving time (also called summer time) this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. The original

发表于:2019-01-02 / 阅读(140) / 评论(0) 分类 英语语法 Grammar Girl

Grammar Girl here. Many parts of the world are moving from daylight-saving time (also called summer time) to standard time this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. Most usage g

发表于:2019-01-07 / 阅读(143) / 评论(0) 分类 英语语法 Grammar Girl

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 Scientific American(八)月

Albert Einstein was a German-born physicist, although most people probably know him as the most intelligent person who ever lived. His name has become part of many languages when we want to say someone is a genius, as in the phrase, Shes a real Einst

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 世界名人简介

This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi

发表于:2019-01-11 / 阅读(169) / 评论(0) 分类 VOA慢速英语2008(十)月

Economics Report - How Gold Became the Gold Standard for Trade 经济报道 - 黄金是如何成为贸易金本位的? This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The best example of something

发表于:2019-01-12 / 阅读(177) / 评论(0) 分类 2012年VOA慢速英语(四)月

时差 说起时差大家或许立马会想到: Time difference 但它只能用来描述地理上的时间差异: What's the time difference between New York and Shanghai? 纽约和上海时差多少? 谈到具体的时差,中文里会说快、

发表于:2019-01-17 / 阅读(113) / 评论(0) 分类 美国文化脱口秀

You're the lighthouse in my ocean It's so far from me. When every time you beam your light, you free me. I believe, if we think like a mountain, our love never dies. If the wave is high enough in the ocean, we never turn to light. We are the spirit o

发表于:2019-02-01 / 阅读(211) / 评论(0) 分类 音乐咖啡厅

(97) A: Do you usually buy in large quantities? B: Our standard order is 500cases at a time. A: We can handle an order that size very easily. B: We'll let you know the next time we need to place an or

发表于:2019-02-02 / 阅读(147) / 评论(0) 分类 实用英语

If you are someone who types a furious text message, only to reconsider and edit it before hitting send, you may be in trouble. The Beam Messenger app shows everything another person is typing in a text message as they type it. This means that if you

发表于:2019-02-06 / 阅读(118) / 评论(0) 分类 阅读空间

GRE 中容易考到的统计题型主要就有以下七种 1。mode(众数) 一堆数中出现频率最高的一个或几个数e.g.modeof1,1,1,2,3,0,0,0,5is1and0 2。range(值域)一堆数中最

发表于:2019-02-07 / 阅读(177) / 评论(0) 分类 英文语法词汇

有了10年超级签证,美国旅游真方便。今天,听Jenny和Spencer的实用指南。帮你省时、省力、又省钱,避免美国旅行的坑。 关键词: Travel in the States: 去美国旅行 Timezones: 时区 There are 6 timezones

发表于:2019-02-15 / 阅读(115) / 评论(0) 分类 美国文化脱口秀

S no option offered 无期权出售 S split or stock divided 拆股或股息 S signed 已签字 s second; shilling 秒;第二;先令 SA semi-annual payment 半年支付 SA South Africa 南非 SAA special arbitrage account 特别套作账户 SAB s

发表于:2019-02-26 / 阅读(151) / 评论(0) 分类 实用英语
学英语单词
16750C
accelerated draft
accessory bodies
accessory shoe with electrical contact
AP-3/AP-180
assistantly
at&t(american telephone and telephone company)
audio-response message
bearing stud
belinkedness
big of
binomial surd
boiled wood oil
bond creditor
bottomfeeding
brewer
California anchovy
canzonet
caret browsing
chapel hills
chemical-ion pump
chlormelane (constedtite)
Corylus ferox
cuneonavicula ligaments
Dawes General Allotment Act
day surgery
decimeter-wave continuum
defect in wood
disunanimous
double density encoding
double reduction gearing
dynamic-coil microphone
Elaeocarpus atropunctatus
false reed
forecastleman
free-radical scavenger
fuck about
Gara, L.
get hot under the collar
heading hold
heliotrope
hydraulic jar
ifsoever
imidazole lactic acid
inorganic clay
interest in red
interference of electromagnetic wave
leptogium trichophorum microsporum
listbox
main-bearing oil seal
managerial value
marker character
maturation pool
meat type
nanocephalous
Nathan Hale
National Vulnerability Database
orientating functin
outlet parameters
parser optimization
pectic acid
pelmatic
philology on bones or tortoise shells
plead with sb. for
political-analysis
polysars
prenursery
protopsaltis
quasi-independence
read control register
reduced mud
resultant displacement
reticulated pattern
retromingent
ring motor
rubber friction tape
run to the end of one's rope
sash plane
SCKL
shipping address code
single superphosphate
siv fault relay
speculate for a rise
sports-information
stipularia
sudokuists
term day
theory of rational integers
thyh
total absorption peak
total additivity
training research and isotope production reactor
Trinity Is.
under symbiotic conditions
unimetallic strip thermal relay
Ust'-Kuyga
venting chimney of stainless steel
Wamphraygate
Westfalian
Wilcoxon two-sample distribution
xcr
xenologists