延时型剩余电流[动作]保护器

HOST: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Steve Ember. This week our program is about a mystery as old as time. Bob Doughty and Sarah Long tell about the mystery of time. (THEME) VOICE ONE: If you can read a clock, you can know t

发表于:2018-11-27 / 阅读(486) / 评论(0) 分类 VOA慢速英语2009年(十二)月

Could an Electric Current Stop Motion Sickness? 晕车能够提前预防,你相信吗? Some people can get motion sickness from being in moving vehicles such as cars or airplanes. 有些人在快速移动的交通工具上会晕车,例如乘坐汽车

发表于:2018-12-08 / 阅读(167) / 评论(0) 分类 2015年VOA慢速英语(十二)月

Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa

发表于:2018-12-24 / 阅读(195) / 评论(0) 分类 2014年Scientific American(八)月

[00:05.20]Nikola Tesla developed the alternating current power system that provides electricity in the United States. [00:14.42]Many of his other discoveries led to electronic inventions for which other scientists were honored. [00:22.75]Mister Tesla

发表于:2018-12-26 / 阅读(193) / 评论(0) 分类 美国英语听力80篇

You may have never heard of him, but Thomas Midgley was considered one of the great chemists and inventors of his time. But perhaps no single person in history has done more harm to our earth. While working at a subsidiary of General Motors in 1921 h

发表于:2018-12-28 / 阅读(176) / 评论(0) 分类 轻松英文阅读

Section C Great Ideas Some of the most important inventions of the past 2,000 years may surprise you. Want to get rich? Become famous? You don't have to be a film star or a basketball player or a musi

发表于:2018-12-29 / 阅读(258) / 评论(0) 分类 新视野大学英语读写教程(1)

妈妈出差期间爸爸和丹尼尔的衣服只能自己洗,但偏偏在这个时候洗衣机坏了。幸好楼下有投币洗衣机,但好事多磨,他们又碰到什么问题了呢? Listen Read Learn Daniel: Dad, something wrong with our w

发表于:2018-12-31 / 阅读(209) / 评论(0) 分类 英语大赢家下册

EXPLORATIONS -April 3, 2002: Spacesuit History By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a

发表于:2019-01-04 / 阅读(260) / 评论(0) 分类 Explorations

Scientists know all about the therapeutics qualities of blue and red light. But until know, sufferers of acne have to go to hospital to benefit from it. But Lumie, the manufactures of this new LED device hope it would see light therapy moving to the

发表于:2019-01-09 / 阅读(259) / 评论(0) 分类 英语杂谈

AS IT IS 2015-03-16 Old Style Parenting Starts Debate in the US 老式的教育模式在美国引发争论 Child abuse and child neglect are serious crimes. Some U.S. laws are designed to protect children from their very own parents. Recently, two pa

发表于:2019-01-12 / 阅读(185) / 评论(0) 分类 2015年VOA慢速英语(三)月

Instructions 1.Track your spending for at least 2 weeks. You won't really know how to live a thriftier lifestyle until you know where your money is currently going. Write down every time you spend money and take a look at it at the end of the month.

发表于:2019-01-16 / 阅读(197) / 评论(0) 分类 阅读空间

They published the data, 他们发布了这些数据, and it actually transformed clinical practice in the country. 而这一举动改变了整个国家的临床实践。 Everybody saw this makes a lot of sense. 大家都发现这样做很有意义。

发表于:2019-01-18 / 阅读(252) / 评论(0) 分类 TED演讲娱乐篇

It was three o'clock. She was learning how to roller-skate. She had always wanted to learn. She could not afford to buy roller-skates before. Now, she was older. She had a job. She bought her first pair of roller-skates yesterday. It is never too lat

发表于:2019-01-24 / 阅读(285) / 评论(0) 分类 英语第3级听力-English Level 3

When you record doctor B because your heard R asked D there, she was wearing all of the protective gill you suppose to. This gonna be alarming for a lot of people who say she was doing everything right but still got it. It is difficult to do all thes

发表于:2019-01-29 / 阅读(223) / 评论(0) 分类 访谈录2014年

有关延迟退休的说法近日流传甚广,实行了几十年的退休年龄真的要改了吗?人力资源和社会保障部有关负责人9月15日表示,我国暂时不会调整退休年龄,有关部门目前只是在研究一些延迟退

发表于:2019-02-05 / 阅读(219) / 评论(0) 分类 实用英语

Time/System Time 时刻/系统时刻 Date/System Date 日期/系统日期 Level 2 Cache 二级缓存 System Memory 系统内存 Video Controller 视频节制器 Panel Type 液晶屏型号 Audio Controller 音频节制器 Modem Controller 调制解调器

发表于:2019-02-07 / 阅读(232) / 评论(0) 分类 实用英语

The fact you even have them ahead of time. 其实你们早就拿到剧本了 No, I mean, she is pretty protective about,I don't think our spoilers are as sort of big as the Scandal's spoilers. 没有 我的意思是 她很看重保密 我觉得剧透对

发表于:2019-02-15 / 阅读(169) / 评论(0) 分类 艾伦脱口秀

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin

发表于:2019-02-18 / 阅读(245) / 评论(0) 分类 英语新闻

When Feeding Birds, Think Safety and Health Feeding birds is a popular way to watch wildlife during the winter months. But many bird experts say the experience is often more pleasant for people than for birds. And it might even put wild birds at risk

发表于:2019-02-22 / 阅读(335) / 评论(0) 分类 2019年VOA慢速英语(二)月

Phil:So it's natural for Claire to wonder about you and her dad. This family is very protective of each other. I remember the first time Claire brought me home. Do you think Jay thought I was good enough for his little girl? No way. But, over time,

发表于:2019-03-06 / 阅读(228) / 评论(0) 分类 跟着美剧练发音
学英语单词
abrasable
Aleksandro-Nevskiy
an inside address
androsexual
angelseys
antheridial
axial flow action turbine
biology class
Bolokhovo
British thermal unit
buryal
cast iron enamel
celtis occidentaliss
central conductor magnetizing method
cerebrospinal flow
charge on indicator
conducting gas
congestive splenomegaly syndrome
coolis
copartnery
correction factor of ground wave phase
cortex (hair)
crowded conditions
cyclic phosphorus
Cytra-20
Czechoslovakism
depside, depsid
dhooti
die sinking EDM machine
disease of fallopian tube
dissertated
dust sampler
ecs
Edinger's nucleus
efferentnerve
Electro Magnetic
elongation indicator
equalized vector
equimeasurable
fatigue disease
fended off
flipwreck
Flomoxof
gala night
geremek
good to go
gun-room
hockey stick incision
ICBU
inscious
instabilities
into orbit
iron disulfide
It beats my time.
jabotinsky
katzeff
keep promise
kidney failures
kiing
kinesthesiologist
knicks
lowest safe waterline
lunar time
mandira
matimaticion
multifunction integrated circuit
neobehaviorism
Neoeserin
noise exposure monitor
nonplant
nose-blind
off ... legs
Omento-
overawful
padfolios
perpendicular style
philadelphia-based
photophobic
plan chart
power-dive
rated voltage of hydrogenerator
recessionistas
rental deposit
second stare of reheat
sedged
seepage interception ditch
short week
shoulder surfer
silver-and-black
sllophthalmia
spots appear
square-metres
stashbox
stormtransposition
strongly-typed language
synchronous key encryption
tangolike
thespiais
Trade Disputes Act
vector difference
werders
worm pulley block