音标:[θə:miˈɔnik ˈvækjuəm tju:b] ;
热离子真空管
词型变化:名词复数形式 : thermionic vacuum tubes
【近义词】

883 、 疲劳 fatigue 884 、 真空成形;真空吸塑 vacuumforming 885 、 真空成形机 vacuumformer 886 、 真空吸塑成形法 vacuummoulding 887 、 真实形状 trueshape 888 、 矩波形

发表于:2018-11-29 / 阅读(149) / 评论(0) 分类 英文名句短语

D: your daughter will be back soon. I'm going to start making dinner. You can just watch some TV in TV room if you like. We just bought a new TV with a LCD screen. The remote control is on the coffee table next to the armchair. L: would you mind if I

发表于:2018-11-30 / 阅读(106) / 评论(0) 分类 生活英语情景口语

useless 无用的,没有价值的 user 用户,使用者 usual 通常的,平常的 usually 通常 utility 效用,实用 utilise 实用 utilize 利用 utmost 极度的,极端的,极限 utter 完全的,彻底的说 vacant 空闲的,空缺的

发表于:2018-12-01 / 阅读(105) / 评论(0) 分类 大学英语四级词汇拼读版

[00:01.00]Module 2 Developing and Developed Countries [00:09.22]Vocabulary and Listening [00:11.93]Activity 3 Check the meaning of these words [00:16.06]Now listen to the conversation and tick the topics you hear. [02:34.36]Activity 4 Listen again ch

发表于:2018-12-04 / 阅读(228) / 评论(0) 分类 外研社新标准高中英语必修(1-4)

[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(126) / 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(89) / 评论(0) 分类 原版英语小短文

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(96) / 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(218) / 评论(0) 分类 上海牛津初中英语七年级

I am feeling pretty energetic when I finish my three cookies and decide to do a little cleaning. 吃完三块饼干后,我感到精力充沛,决定去打扫一下房间。 I take out a rag and start dusting the living room. 我拿出一块抹布,

发表于:2018-12-17 / 阅读(58) / 评论(0) 分类 ESL露西的一天

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(93) / 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(67) / 评论(0) 分类 快口说英语

I am feeling pretty energetic when I finish my three cookies and decide to do a little cleaning. 吃完三块饼干后,我感到精力充沛,决定去打扫一下房间。 I take out a rag and start dusting the living room. 我拿出一块抹布,

发表于:2018-12-28 / 阅读(49) / 评论(0) 分类 ESL露西的一天

No Housework Day is one of those days you see on calendars on the Internet but dont know where it came from. It is always on April 7th. It is one day of the year when it is OK to do nothing in the house. Everybody has the day off from doing the house

发表于:2018-12-29 / 阅读(67) / 评论(0) 分类 英语课程学习计划和讲义

Yvonne: This is 6 Minute English, I'm Yvonne Archer and Alice has kindly joined me for today's programme. Hello Alice. Alice: Hi Yvonne. Yvonne: Now Alice, how do you get around London? Alice: Ooh by bus, bicycle and usually the Tube. Yvonne: Aha, an

发表于:2019-01-07 / 阅读(162) / 评论(0) 分类 六分钟英语

London's 'Tube' Plays Crucial Olympics Role Massive overhaul Head into the Tube and you never quite know what you might find. With 12 million passengers passing through every day - and three million more expected during the Olympics - the Tube is its

发表于:2019-01-13 / 阅读(128) / 评论(0) 分类 VOA标准英语2012年(七月)

BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn

发表于:2019-01-16 / 阅读(208) / 评论(0) 分类 伦敦生活

听力题目: 19.(A). Peggys sister will be staying with her for a week. (B). Peggys sister will arrive in eight days. (C). Peggy is going to see her sister tomorrow. (D). Peggy and her sister are coming to town soon. 20.(A). Take it back to the st

发表于:2019-01-18 / 阅读(93) / 评论(0) 分类 托福听力单句训练

A: Honey, the house is such a mess! I need you to help me tidy up a bit. My boss and her husband are coming over for dinner and the house needs to be spotless! B: Im in the middle of something right now. Ill be there in a second. A: This cant wait! I

发表于:2019-01-22 / 阅读(78) / 评论(0) 分类 英语播客-EnglishPod

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(129) / 评论(0) 分类 英语新闻

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(138) / 评论(0) 分类 快口说英语
学英语单词
abnormal polychromate
accelerator anode
arms control
automatic closed-loop control system
balistoides viridescens
become of age
bellus
boychild
Budapest Zoo
call the attention of to
caster sugar
causability
champignons
channel grant high
chenopodium album l. var. centrorubrum mak.
CHOA
compound norgestrel tablets
cowbells
cuplikest
demyelinating encephalopathy
displacement engine
EKV
embryologists
exposure control stripe
filtration underground
fluorescent tracer technique
four parameter model
funday
fused-impurity phototransistor
ginned cotten
gotbaum
have no further use for
heavy water(d2o)
helices
high impedance tube
host bus
hymograph
Import List from Cells
inobservation
interrupted shingle layup
iskyan
lead the way
looseth
low-thoughted
lunar long period tide
matrimonial age
maxiscooter
McBurney incision
meatloaves
methylclhlorofonmate
misopedia
multi-stage stressing
nadiumotherapy
nephrocystosis
nessel
nonconsumably melted
oxaloacetic acids
Pacific Communications Network
Patricksburg
PC-PFC
physical I/O address
Pocomam
portable belt conveyer
positron annihilation
postillate
prothetic
pulse-converter system of turbocharging
pycnodysostosis
quesadilla
rangemaster
regional motor transportation enterprise
repocketed
repunctuation
response coefficient
Rhododendron dasycladoides
rotary flow
rouennaiss
rules of false position
see good to do sth
self detaching hook
SHCO
single-shear double rivet joint
sphaerocarpaceaes
stably parallelizable
straight fender
surrosion
the enemy from within
the population
thrs
timber floor base
transconductance bridge
trencher-men
tricked-out
two-color diagram
unterminated
upright lock
vertical opener
virtualised
well balanced
wet seal holder
woodlot
xiphonite