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(465) / 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(159) / 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(171) / 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(174) / 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(165) / 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(238) / 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(195) / 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(227) / 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(231) / 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(160) / 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(176) / 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(220) / 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(255) / 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(217) / 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(210) / 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(212) / 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(154) / 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(213) / 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(325) / 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(221) / 评论(0) 分类 跟着美剧练发音
学英语单词
all-staters
alloy resistance
Andorre la Vieille
arteriesgraph
aspartylglutamate
athermal solution
attainable(to)
barbituric acid
beef pudding
behavioral definition
beta-n-acetylhexosaminidase
better-than-average
broke beater
burnt the candle at both ends
cell gate
cirrocumulus stratus
clothing expenses
commercial acceptance
computerized serial system
contend about
criminatory
daily labor report
data transport functions
DBS Bank
detent mechanism
divorce settlement
dysoremos neutrophilia
elastinogenesis
electric permissible mine locomotive
elois
epiotie
exaeresis
farlowella
felting machine
flavophospine
formulate and advance
fresh water pollution
from scratch
gauge light
guardian of mental paitent
guys of burgundy
hawse pipe
hemopericardium
hold out for sth
imputest
intramolecular respiration
kerstin
lateral relieving device
likelihood ratio detection
live body
loop output signal
medicable
midterm exams
millennials
Milma
Mohorovicic discontinuity
monofilm
Native elements
nickel-iron-alkaline cell
nitrophilous
Os lacrimale
Oxytoxaceae
pandrass
penetration of rubber cement
phaine
pigmentolysine
postbanks
realtime rendering
regional brands
repairwomen
reviewery
right of abandonment
rowen -cheese
sargassum rostratum
scaphiform
sculptured effigy
secedings
sense of humour
single fluke anchor
solar urticaria
spring of cylinder lubricator plunger
stage-managements
stylochilamide
sweet woodruff
Synaptera
the pleasures of flesh
three line relaxation
timing cell
trade routes
traffic information
trashing
tuck-point
ultima ratio regum
unaliveness
unconfound
unkle
unweeded
us rs
walkers
winoes
work model
xenon limitation