分流型磁心电路

Lesson 38 Text A Can't She Type? The well-known banker, T. J. Ellington, was at one time in his younger days the manager of a New York office. His secretary had been with him for many years, and knew

发表于:2018-12-02 / 阅读(376) / 评论(0) 分类 初级口语教程

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(233) / 评论(0) 分类 Scientific American(八)月

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(299) / 评论(0) 分类 每日攻克5词

This is Scientific American's 60-Second Science, I am Cynthia Graber.This'll just take a minute. On earth, snow crystals as we all know, form from frozen water. But scientists believe there're also flakes that fall on Mercury, and they're made of iro

发表于:2019-01-07 / 阅读(202) / 评论(0) 分类 Scientific American(六)月

Scientists Work to Understand Earth's Magnetic Field 科学家们努力了解地球磁场 Most of us rarely think about the earth's magnetic field. We might know that it helps guide birds as they travel and keeps our compasses pointing north. But, th

发表于:2019-01-12 / 阅读(197) / 评论(0) 分类 2015年VOA慢速英语(八)月

Strengthen Your Core With 5 Simple Exercises From VOA Learning English, this is the Health and Lifestyle report. Your core is a complex network of muscles. It includes your abdominal muscles, back muscles and the muscles around you pelvis. Basically,

发表于:2019-01-12 / 阅读(227) / 评论(0) 分类 2016年VOA慢速英语(七)月

Maryland Couple Makes Beautiful Objects From Recycled Circuit Board There is no shortage of recycled material for Debby Arem's creations. She uses everything, from pieces of scrap metal and electronic components, to computer circuit boards and chips.

发表于:2019-01-13 / 阅读(248) / 评论(0) 分类 VOA标准英语2012年(三月)

Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin

发表于:2019-01-14 / 阅读(264) / 评论(0) 分类 VOA标准英语2013年(四月)

今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了,

发表于:2019-01-16 / 阅读(293) / 评论(0) 分类 美国习惯用语

The loss of the magnetic field has a catastrophic impact on the planet's evolution. Mars becomes the red planet we see today. If earths magnetic protection continues to fade, would it suffer the same fate? If it vanishes completely, the planet might

发表于:2019-01-22 / 阅读(207) / 评论(0) 分类 自然百科2011年

Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen

发表于:2019-01-22 / 阅读(194) / 评论(0) 分类 自然百科2011年

As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag

发表于:2019-01-22 / 阅读(188) / 评论(0) 分类 自然百科2011年

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(220) / 评论(0) 分类 自然百科2011年

China's first permanent magnetic monorail train has successfully completed a test run in the city of Qingdao, in Shandong Province. The high-tech urban transportation system features strong climbing capacity, a small turning radius, energy efficiency

发表于:2019-02-05 / 阅读(234) / 评论(0) 分类 cctv9英语新闻2016年

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(225) / 评论(0) 分类 英语新闻

TUNIS, March 24 (Xinhua) -- Elena Svitilona of Ukraine won the la Marsa Open after beating Bulgaria's Isabelle Shinikova 7-6, 7-6 in the final on Saturday in the north of the capital. On Friday, Svitilona easily defeated Tunisian hopeful Ons Jabeur,

发表于:2019-02-06 / 阅读(252) / 评论(0) 分类 英语新闻

今天我们要学的词是hard-core。 Hard-core, 是指坚定的,铁杆的。Hard-core gamers, 是指打电玩上瘾的人。Hard-core members of the party, 是指一个政党的中坚力量。All my friends are hard-core Redskin fans, 我的朋友

发表于:2019-02-08 / 阅读(226) / 评论(0) 分类 英语单词荟萃

周五晚上Pub见:Magnetic Man - I Need Air Magnetic Man,来自英国的新人,这首电子风的新单曲本周同样杀入英国单曲榜前十一周上榜那么多舞曲,生活需不需要这么五彩缤纷啊这张单曲封面要不要这么

发表于:2019-02-11 / 阅读(215) / 评论(0) 分类 经典英文歌曲

周五晚上Pub见:Magnetic Man - I Need Air Magnetic Man,来自英国的新人,这首电子风的新单曲本周同样杀入英国单曲榜前十一周上榜那么多舞曲,生活需不需要这么五彩缤纷啊这张单曲封面要不要这么

发表于:2019-02-14 / 阅读(241) / 评论(0) 分类 流行英文歌曲

Science and technology 科学技术 New transistors 新型晶体管 Mechanical advantage 机械优势 Two new types of transistor may lead to simpler, more efficient computers 两种新型晶体管或许会导致更加便捷高效计算机的出现 W

发表于:2019-02-16 / 阅读(212) / 评论(0) 分类 经济学人科技系列
学英语单词
anthrahydroquinone diacetate
anti-development
ballistic pendulums
besmudge
biological parenthood
bisanzios
Blerancourt
bor-
casmurro
chest-type parachute
clamburgers
coloproctostomy
conchilite
contracting expanding nozzle
coprisoners
cyclobutadienes
cyclobuxine
deepdenes
epimere
eudora light
exploratory pharyngotomy
Extraction loss
fast(-)track authority
fiber coir
fineablest
fire-eyed
first lieutenant
floridum
fore-masthead light
gating line
Goss process for the continuous casting of metals
graft-versus-host disease
Gumbeyka
gutturalization
havena
high pressure belt
hoggarth
home-makers
ideal separation factor
impress across
indemnifiers
Internet telephone
investor base
Iscariots
jack in the green (london)
kariukis
killable
kitchen appliances
laryngeal prominences
lay our hands on
leaf surface
Lemmaphyllum
Lord forfend
losing your head
manufacturing program of a year
mass of
mehren
melamine resin adhesive
monetized
nearthrosi
next off
non-propagating cracks
oligochaete worm
p-iodobenzyl chloride
pancart
pentermine
phenyldiethanol-amine
polo dots
protest for nonacceptance
Pulicaria salvifolia
pyrophosphatase
radiochromatographic separation
reactor fuel meltdown
reaper-binder
regnart
restrictionless
Roxithromycin-Sanye
rutate
Saussurea medusa
Sevingé
shetland sheep dogs
sigmund rombergs
speciology
steak sandwich
storm-damaged
supernal
switch locking bar
synodus rubromarmoratus
tecal
the difference between tweedledum and tweedledee
thermoelectrometry apparatus
topographic region
transcendental instruction
Uchigo
undefinedness
unitary bundle
unnoteful
USAFSOF
ventilating engineering
Vevay
warhorse
wsmr