保护性接地(地线)

[00:00.00]Unit 8 [00:12.93]The sun is bigger than the earth. [00:16.85]Part 1.Let's talk. [00:21.24]Their house is much bigger than ours!It sure is. [00:27.64]Hello,Bill let me ask you a question. [00:33.15]Which is bigger,the sun or the earth? [00:3

发表于:2018-11-30 / 阅读(287) / 评论(0) 分类 新版剑桥少儿英语二级 (上)

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(251) / 评论(0) 分类 CNN2010年(三)月

[00:15.99]Lesson 41 [00:25.97]A:Come to school in your old clothes tomorrow. [00:36.23]B:Why?What's happening? [00:40.59]A:It's Tree Planting Day. [00:45.04]We are going to plant trees in the park/around the lake. [00:49.40]B:Really?Wonderful! [03:30

发表于:2018-12-10 / 阅读(138) / 评论(0) 分类 初中英语人教版初三

数词 ( num. ) : 表示数目或事物的顺序。如: one, two, three, first, second, third, fourth. 数词: 1 、分类:数词 有 基数词 和 序数词 两种。英语的数词可以作句子的主语、宾语、表语和定语。 2 、基

发表于:2018-12-13 / 阅读(462) / 评论(0) 分类 初中语法汇总

Down to Earth Now, the VOA Special English program Words and Their Stories. Every week at this time, we tell about popular American words and expressions. Some of these are very old. Some are new. Together, they form the living speech of the American

发表于:2018-12-16 / 阅读(137) / 评论(0) 分类 2015年VOA慢速英语(三)月

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(159) / 评论(0) 分类 轻松英文阅读

019 Factory Tours Dialogue 1 A: We'd like to welcome everyone to the Michelson Tools factory site, and thank everyone for being here today. My name is Paul Shafer, I'll be showing you around today. Please feel free to ask questions at any point duri

发表于:2018-12-31 / 阅读(169) / 评论(0) 分类 商务英语口语

EXPLORATIONS - Yellowstone Volcano By Paul Thompson Broadcast: Wednesday, August 11, 2004 (MUSIC) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Doug Johnson with EXPLORATIONS in VOA Special

发表于:2019-01-07 / 阅读(203) / 评论(0) 分类 Explorations

环境保护英语演讲稿:Only One Earth We have only one earth. But now,the environment becomes worse and worse. As you know,there's no enough clean water for people. So many of them lose their lives because of water. In a lot of countries, peop

发表于:2019-01-08 / 阅读(177) / 评论(0) 分类 英语演讲

The Ozone Layer 臭氧层 Can humans live away from the Earth? 人类能远离地球生活吗? Maybe it will be possible in the future but it is impossible now. 或许将来可以,但现在不行。 In our solar system, the Earth is probably the

发表于:2019-01-10 / 阅读(237) / 评论(0) 分类 与美国小学生一起学英文第10册

heaven on earth we need it now i'm sick of all of this hanging around sick of sorrow i'm sick of the pain i'm sick of hearing again and again that there's gonna be peace on earth where i grew up there

发表于:2019-01-10 / 阅读(164) / 评论(0) 分类 欧美绝对经典 U2

By Paul Thompson Broadcast: September 10, 2003 (THEME) VOICE ONE: This is Phoebe Zimmermann. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Seven astronauts and

发表于:2019-01-11 / 阅读(269) / 评论(0) 分类 VOA2003(下)-美国人文故事

Words and Their Stories: Down to Earth 词汇典故:Down to Earth Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目。 Every week at this time, we tell about popular American words and

发表于:2019-01-12 / 阅读(179) / 评论(0) 分类 2012年VOA慢速英语(十一)月

AGRICULTURE REPORT - September 3, 2002: Mulch By George Grow This is Bill White with the VOA Special English AGRICULTURE REPORT. Mulching is one of the best things people can do for their plants. Mulc

发表于:2019-01-30 / 阅读(212) / 评论(0) 分类 农业与发展

Don't you see the heavy smokes from the big chimneys? Don't you smell the gas from the motors all around the streets? We've got much dirtier air! the icebergs are melting from the warmer winter because of the air pollution! 难道你没有看到从大烟

发表于:2019-02-01 / 阅读(170) / 评论(0) 分类 英语作文

down-to-earth 踏实谦逊 今天要学的习惯说法由三个单词合成,中间都用连词符号相连。这个复合词是:down-to-earth。earth是大地的意思,down-to-earth这个习惯说法往往用来说某一种人,表现他们什么样

发表于:2019-02-06 / 阅读(147) / 评论(0) 分类 美国俚语

All Quiet on the Western Front by Erich Maria Remarque FOUR We have to go up on wiring fatigue. The motor lorries roll up after dark. We climb in. It is a warm evening and the twilight seems like a canopy under whose shelter we feel drawn together. E

发表于:2019-02-16 / 阅读(136) / 评论(0) 分类 有声英语文学名著

Soil、earth、ground和land都可以表示地面,但这四个词的用法有很大的区别。一起来看看吧! soil意为:泥土、土壤,尤指生长植物的土地。或国家、国土。 The trees have rooted in the rich soil. 树木在肥

发表于:2019-02-18 / 阅读(218) / 评论(0) 分类 英文语法词汇

Smash Into You - Beyonc Knowles Head down as i watch my feet take turns hitting the ground Eyes shut, i find myself in love racing the earth And i soaked in your love And love is right in my path, in my grasp And me and you belong I wanna run, run sm

发表于:2019-03-04 / 阅读(281) / 评论(0) 分类 影视英文歌曲

Some stay in shallow waters But our future is the open sea I will fear no evil As long as you're right here with me With you I'll stay the course Together we will rise above We'll set the sails of faith Raise the flag of love Raise the flag of love S

发表于:2019-03-11 / 阅读(218) / 评论(0) 分类 音乐咖啡厅
学英语单词
ansible
automatic voltage regulator
backing paper
bampot
beaded lighting
Belgaum
between whiles
blackletter type
blood poison
boss hammer
bradly
breaking toughness
caesious
Cathedral City
clavigerate antenna
copartnered
crack monitoring system
cross-roll straightening machine
diagram ofintegration
differentiating transformer
disqualifying
dribble charging
effective moisture
engaging force
equal-volume
express alternate pcb
float system
full-tone original
gas coulomb-meter
ghafouri
girder load
go woolgathering
greenheads
handedly
heat creep tester
heuristic factory
home traffic
hoot owl
Hormofollin
impulse noise inverter
in one's blood
instrumental aggression
keyfobs
life elements
live the dream
make no difference
Marattiales
mijakite
minimum taxable ceiling
minimum volume
mixed-bed demineralizer
mortality table
multi-tool
multiengine
network strategy
neuropathogenicity
Okodu
olfactory pit
Osetic
oxide spot
packtong
paper coal
paramutation
passeboard
Phalaenopsis mannii
Piperazino-CS2
pitch frequency
plain knitting
plastics replicas
pleochroism
Plymouth porcelain
political correctitude
pomeranian sheep
product administration
profile shape parameter
proportional plus integral controller
pulp table
Rev Ver
RWTH
satellite data reduction processor system
save energy
scarus quoyi
scientific thought
selected-response test
sitting around
situs transversus
slab waveguide
stearidonic
step sth down
striate nuclei
Trachythecium
train frequency
under any circumstance
undiurnal
unrestricted grant
volta's law
wind-rights
wishlists
wood splitter
yellow ripening
ylikewise
ywoven