变流技术

by Jason Marshall In the last article, we began discussing how to convert from one system of units to anotherfor example from miles to kilometersand how all of this relates to the multiplicative identity. But we didnt quite have enough time to get to

发表于:2018-12-07 / 阅读(119) / 评论(0) 分类 数学英语

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 Scientific American(二)月

泰瑞在中国旅行,想换一些人民币。他来到银行,发现当天澳元对人民币的汇率比昨天低。他手里拿着一千澳元,换还是不换呢? Listen Read Learn Bank clerk: Good Morning, sir. What can I do for you? Terry: Yes, I'd like to change Australian dollars for RMB. Ban

发表于:2018-12-26 / 阅读(75) / 评论(0) 分类 英语口语大赢家

每期节目一话题,让英语磨练耳朵的同时学到更多有益的小知识,丰富知识的同时受益于生活。 Time-management tips 时间管理技巧 Work around procrastination. 克服拖延症。 Try Francesco Cirillo's Pomodoro Te

发表于:2018-12-27 / 阅读(105) / 评论(0) 分类 英语听力广播—Listening

Converting to Another Religion Debbie: Okay, Im off. Ill be back around eight oclock. Marcelo: Hey, where are you going in such a hurry? Debbie: Im going to my religious education class. Marcelo: Religious education class? Whats that about? Debbie: W

发表于:2018-12-27 / 阅读(128) / 评论(0) 分类 2014年ESL之日常生活

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(445) / 评论(0) 分类 2017年VOA慢速英语(六)月

By Steve Mort Orlando, Florida 09 February 2007 watch Hispanic Muslim report The number of Hispanic Americans converting to Islam is growing rapidly -- particularly in New York, California, Texas and Florida, which have the greatest concentration of

发表于:2019-01-04 / 阅读(131) / 评论(0) 分类 2007年VOA标准英语(二月)

2. agri 你已认识field是“田地”, 你是否也知agri的意义? 在有关农田的词汇里, field竟都被agri所代替。 agri=field 田地,农田(agri也作agro,agr) 1. agrology agr

发表于:2019-01-06 / 阅读(135) / 评论(0) 分类 英文语法词汇

Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(二)月

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver

发表于:2019-01-11 / 阅读(203) / 评论(0) 分类 英汉幽默故事选读

The nineteenth century held one last great surprise for chemists. It began in 1896 when Henri Becquerel in Paris carelessly left a packet of uranium salts on a wrapped photographic plate in a drawer. When he took theplate out some time later, he was

发表于:2019-01-29 / 阅读(162) / 评论(0) 分类 万物简史

By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla

发表于:2019-01-31 / 阅读(158) / 评论(0) 分类 VOA标准英语2008年(一月)

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,

发表于:2019-02-03 / 阅读(138) / 评论(0) 分类 趣味英语

By Elizabeth Carlassare. Todays topic is what to do if you want to convert to a Roth IRA, but can't. A Roth IRA is a great way to save for retirement if youre eligible to contribute. With a Roth IRA, you contribute after-tax money, but your earnings

发表于:2019-02-05 / 阅读(211) / 评论(0) 分类 货币英语

Work begins this month on a new, environmentally-friendly power plant in Liberia that will use old rubber trees to generate electricity. It is part of a plan to make Liberia the world's first sustainable biomass-driven economy. Natural rubber has an

发表于:2019-02-12 / 阅读(121) / 评论(0) 分类 VOA标准英语2009年(九月)

The Federal Bureau of Investigation's secret method for unlocking the iPhone 5c used by one of the San Bernardino shooters will not work on newer models, FBI Director James Comey said. 美国联邦调查局局长詹姆斯科米近日表示,FBI用于破

发表于:2019-02-15 / 阅读(110) / 评论(0) 分类 英语新闻

Reproductive technology 生殖技术 Mum, Dad and Mitomum 妈妈,爸爸与代孕妈妈 Britain may allow babies with three biological parents 英有望允许新生儿有三个亲身父母 ASSISTED reproduction is one of those rare areas in which Br

发表于:2019-02-16 / 阅读(147) / 评论(0) 分类 经济学人科技系列

知识点讲解: 1、中文意思一样 insist persist 2、两个词长得像 special specialty 3、长得像+中文意思一样 technique technology ① Technique 方法、技巧 Hes a great basketball player. He has flawless technique. 他是位很

发表于:2019-02-21 / 阅读(121) / 评论(0) 分类 每天三分钟学英语

Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量,包括物体的,微粒的或质点集的运动等。 势能(Potential energy )是位置的函数,例如把一个

发表于:2019-02-24 / 阅读(92) / 评论(0) 分类 英语听力文摘 English Digest

Sit on a swing, let someone push you, and away you go. But what happens if the person who pushed you walks away, and you want to swing faster and higher. If you've ever been in the second grade, you know the solution to that. Just start pumping your

发表于:2019-03-06 / 阅读(220) / 评论(0) 分类 英语时差8,16
学英语单词
18-OXOF
acid sensitive indicator
alkyd resin coatings
an eight-hour day
appeal-courts
appeasement behavior
at each other's throat s
aulacorthum solani
Baboua
belous
blabberer
CARIFTA
center limb variation
colanic acid
color-phase alternation
computer compiler
copyline
Crypsis schoenoides
cybermarketing
danse aux aveugles (france)
dentate-sinuate
discontinuous centrifuge
drawing tablet
dropped frame
eartilage capsule
eeler
enclose
explosion-proof machine
flat-compounding
founder's profit
fullscale
gamergate
glyc(os)an
gulfs of california
heat removal fluid
holster
horseshoe magnet
hybrid start-up of high-medium pressure cylinder couplet
immuning
index of crime
indulgent
international code flag
Jumex
Kaukkwè R.
Kenichiro
kronotsky
krzysztofs
madarotic
magnetic domain theory
Marfan's epigastric puncture
Marmagao(Mormugao)
mass organization
mglus
microcardias
nailed to the wall
non-efficient
nonhormonal
nonpresetting control
North Vietnam
optimum hydrogen-ion concentration
oversintering
paging time-sharing
peep of morning
pneumoconiosis
prototype l-section filter
put words into mouth
radar dome (radome)
Rangri
regular premium
remoistening adhesive
secularly
shipment by railway
simulated currency loan
sisalagenin
sliding mode of crack
Spanish brown
spectral luminance
speedlamp
ssstsrsisfses-s
stairfoot
straw shredder
structural front configuration
styroflex cable
sulcus arteriae temporalis mediae
sulfhedryl
Teague, L.
telegraaf
test-fired
the big
the lowveld
tigi
toll message
trayse
urinary incontinences
vacuum shutter
videocystourethrography
walk ... through
web-offset
webring
Weitbrecht's foramina
yellow-legs
zazi