电流保护装置

current protective device的用法和样例:

例句

  1. Overcurrent protection devices are essential in electrical systems to limit threats to human life and property damage.过电流保护装置在电力系统是必不可少的,限制了威胁人类生命和财产损失。

Well that's a pressure cooker of a day on Capitol Hill as we wait and wonder how this vote for healthcare plays out, the final vote is expected Sunday and Democratic house leaders are trying to convince undeclared members to vote yes. 216 votes are n

发表于:2018-12-02 / 阅读(431) / 评论(0) 分类 CNN2010年(三)月

Broadcast: Jan 15, 2003 By Jerilyn Watson This is the VOA Special English Health Report. Many millions of people around the world suffer from problems of the small intestine. Bleeding from abnormal gr

发表于:2018-12-07 / 阅读(430) / 评论(0) 分类 VOA2003(上)-健康资讯

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(302) / 评论(0) 分类 2015年VOA慢速英语(十二)月

Ramparts Are Protective BarriersWhen you sing or listen to the Star Spangled Banner, do you understand the words? The national anthem of the United States of America was inspired by the Battle of Baltimore at Fort McHenry in 1814. The lyrics suggest

发表于:2018-12-19 / 阅读(372) / 评论(0) 分类 Facts-事实

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(347) / 评论(0) 分类 2014年Scientific American(八)月

I love the news and current events. Im addicted to whats happening in the world. It doesnt matter what kind of news it is, I love watching it. Even if its from countries Ive never heard of. Ill even watch the same news programme three or four times a

发表于:2018-12-26 / 阅读(403) / 评论(0) 分类 纯正英语一分钟

[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(343) / 评论(0) 分类 美国英语听力80篇

[00:07.37]Comparing cultures [00:09.71]Listen to a person talking about sports [00:11.96]in the USA and Britain and answer the questions [00:16.27]American football is one of the most popular [00:18.95]sports in the United States. [00:21.50]It's very

发表于:2018-12-29 / 阅读(444) / 评论(0) 分类 北师大版高中英语模块3

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(413) / 评论(0) 分类 新视野大学英语读写教程(1)

(man) I know you're anxious to get your permits and get started. But there're just a few things I'd like to mention that might help you avoid trouble during your stay. First of all, make sure you carry adequate water. You'll need it if you're hiking

发表于:2018-12-30 / 阅读(431) / 评论(0) 分类 托福听力短文

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(423) / 评论(0) 分类 Explorations

The 2009 Nobel Prize in physiology or medicine goes to Harvards Jack Szostak, Johns Hopkinss Carol Greider and Elizabeth Blackburn at U.C. San Francisco for their work on how chromosomes are protected by telomeres and the enzyme telomerase. The Nobel

发表于:2019-01-08 / 阅读(402) / 评论(0) 分类 Scientific American(十)月

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(452) / 评论(0) 分类 英语杂谈

[00:00.00]Qianlian is keen to go to university [00:03.32]but she definitely [00:04.27]doesn't want to study medicine [00:06.26]She used to simle all the time [00:07.83]but now she looks washed out and unhappy [00:10.51]She's also lost a lot of weight

发表于:2019-01-10 / 阅读(452) / 评论(0) 分类 北师大版高中英语模块9(选修)

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(465) / 评论(0) 分类 英语第3级听力-English Level 3

T. Thank the other three brothers of their father's mother's brother's side. The blue bluebird blinks. The cat catchers can't catch caught cats. The crow flew over the river with a lump of raw liver.

发表于:2019-02-01 / 阅读(405) / 评论(0) 分类 趣味英语

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(319) / 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(419) / 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(492) / 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(360) / 评论(0) 分类 跟着美剧练发音
学英语单词
aeolipile
ambercane
amphogneiss
an open hand
anterior commissurotomy of spinal cord
arc converter
as an example
as honest as the day is long
aurothion
beknotted
boiling sulphur reactor
brought you down
Canella-alba
Caodaiists
capital of Peru
central waste water treatment
chair-makings
chemico-analytic
come in for something
copper-oxide cell
counts per channel
Desges
devilbend
disagreeable person
distell
effective turn
elastohydrodynamic lubrication theory
emerged plants
epinephelus hexagonatus
eruption-promoting prescription
estimate in
eyelet grommet
fastfood
fence-post
focus shift
foundational juridical person
frequency reproduction
Geosynchronous satellite.
gopiks
governmental international institution
Grisolle's sign
high-velocity electron beam
house telephone
indescribable
indirect method
information exchange center
input channel
keelline
kiln for large pieces
Kāmtha
Lactobacillus lactis
lazurfeldspar
line hit
linfords
Livingstonia
master prism
membership function
mercury compound
miliolid
molecular bond energy
molten metal dip coating
Motoura-kawa
murrows
near field holography
neutrion
nitrosation titration
non-pageable dynamic area
non-uniform quenching
oxyneurin
paper girl
peramorphosis
physical changes
piece-dyeing machine
pollutants in flue gas
ponomaryov
process air
rebonded sand
reclass
remagnetizations
rescission of contract
rosinas
rotating blade propeller
screw-holder
send side
sensory conflict hypothesis
Septotan
shaft-driven oil pump
signal synthesis
sinker bar guide
spondence
spontaneous generation of lookahead
terminal modem eliminator
three-phase half-wave double y rectifier
traffic bound
tumor cell
twingy
udpg (uridine diphosphate glucose)
vinew
vitriying clay
would not cross the road to do something
Zalieutes
zoogamy