音标:[lo ˈvækjuəm prəˈtɛktɪv dɪˈvaɪs] ;
低真空保护装置

[0:0]urban城市的 [0:32.7921]urge urgent utility utilize鼓励,激励 紧急的,急迫的 功用,效用 利用 [1:11.2978]utmost vacant vacuum vague极度的,最大的 未被占用的,空着的 真空 含糊的,模糊的 [1:52.9962]vain valid vanish variable徒劳的,无效的 有效的,

发表于:2018-12-05 / 阅读(209) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She

发表于:2018-12-07 / 阅读(147) / 评论(0) 分类 原版英语小短文

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(182) / 评论(0) 分类 VOA2003(上)-健康资讯

Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it

发表于:2018-12-11 / 阅读(162) / 评论(0) 分类 365个英语简短小故事

Module 4 The natural elements Unit 1 Electricity today [00:11.08]自然世界 今日电的作用 [00:22.15]Read,learn and think [00:25.47]Electricity is very important to us. [00:27.73]电对我们相当重要。 [00:29.99]I'm going to show a video.

发表于:2018-12-17 / 阅读(340) / 评论(0) 分类 上海牛津初中英语七年级

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(133) / 评论(0) 分类 Facts-事实

This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 Scientific American(五)月

No. 26 Can you help me wash the car? 第二十六课 你可以帮我洗车吗? Practice Listen and Repeat A 1. I use the carwash at the gas station. 我在加油站洗车房洗车。 2. She sprayed me with the hose. 她用水管溅了我一身。 C

发表于:2018-12-25 / 阅读(130) / 评论(0) 分类 快口说英语

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(191) / 评论(0) 分类 新视野大学英语读写教程(1)

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(161) / 评论(0) 分类 Explorations

All Time Low The Wanted Praying won't do it Hating won't do it Drinking won't do it Fighting won't knock you out Of my head Hiding won't hide it Smiling won't hide it Like I ain't tried it Everyone's tried it now And failed somehow So when you gonna

发表于:2019-01-10 / 阅读(154) / 评论(0) 分类 好听的英文歌曲

This is the VOA Special English Agriculture Report. Mike Henry has a two-hectare farm in Palmer, Alaska. About a year and a half ago, his goat Millie was giving him a hard time. She did not want to be milked. She kicked her back legs and stepped into

发表于:2019-01-11 / 阅读(128) / 评论(0) 分类 2010年VOA慢速英语(七)月

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

The fridge is one of your homes biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one of the best insulators known. But vacuum-insulated panels are too pricy for widespread use. Enter

发表于:2019-01-30 / 阅读(181) / 评论(0) 分类 60秒科学

CAPE CANAVERAL Two American astronauts will venture outside the International Space Station Monday to stow a failed coolant pump and extend the outpost's Canadian railway. Wearing protective spacesuits in a deadly vacuum(真空) environment, Stephen

发表于:2019-02-05 / 阅读(193) / 评论(0) 分类 英语新闻

How Low [Hook] How low can you go? [8x] [Ludacris] Luda! She could go lower than i ever really thought she could, Face down, ass up! The top of your booty jiggling out your jeans, Baby pull your pants up, I like it when i see you do it, Better then i

发表于:2019-02-18 / 阅读(195) / 评论(0) 分类 好听的英文歌曲

Low [Chorus:] Shawty had them Apple Bottom Jeans [Jeans] Boots with the fur [With the fur] The whole club was lookin at her She hit the flo [She hit the flo] Next thing you know Shawty got low low low low low low low low Them baggy sweat pants And th

发表于:2019-02-18 / 阅读(174) / 评论(0) 分类 好听的英文歌曲

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(265) / 评论(0) 分类 2019年VOA慢速英语(二)月

9.有客来访Who's there? 是谁呀? 1.Who's there? 谁在那里? 2.Who is it? 你是谁? 1.Unlock the door and let me in. 把门打开让我进去。 2.May Icome in? 我可以进来吗? 1.Ring the doorbell.请按门铃。 2.Please use the d

发表于:2019-02-27 / 阅读(223) / 评论(0) 分类 快口说英语

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(189) / 评论(0) 分类 跟着美剧练发音
学英语单词
abzymes
acrylonitrile butadiene rubber
adamantanamine
aerospace photogrammetry
affabulatory
airhostess
alicia alonsoes
alimentary cycle
alphanumeric data
American Hospital Supply Corp
angsman
antevenient
babelthuap
balance sheet date
bare-butt
basse-terre (la basse-terre)
beforetime
billbug
Black Canyon
blood rule
cable knitting
Campbell Town
cattoes
circumambulated
comparison lever
component analog
constant current regulation
continuous smokehouse
course to steer
curtain-climbers
destroyed atom
dismalize
double bill
double calipers
double-pointed
electrical capacity charge
electromagnetic delay lines
eleomyenchysis
escape react test
estates
fraudulent alteration
gamebirds
gP38
Halaf
hexastyle building
immediate control
initial approach area
internet environment equipment readiness
ischiovaginal
Iskanderdar'ya
keypunch operator
kyjuan
least material size
list variable
magneto-anemometer
massively parallel
mast stacker
Matrisil
maximum allowable
media role
mercator's sailing
microchamber culture
microstore
mineral phase rule
minimal density
multinervis
narcotine hydrochloride
neutral colour filter
Nodus lymphaticus tibialis posterior
nontipper
nudged
oil immersion
optical fiber splitter
Paddy's hurricane
par example
picketee
Power Systems
prefinancing
probe action
promythia
pullup acceleration
Quebrada, R.
salt liquor
sattle
scruton
seeing other people
self-aligning support
silvern
sluice gate price
superrecursive
systematic development
tense atmosphere
tumble dryer
underground horizontal control survey
unhypothesized
verbal promise
very much like
virtual money
walkwitz
water mark defect
witnessed to
Yanggak-san