形管饱和蒸汽发生器

An Englishman is at home with his girlfriend. (E=Englishman; G=girlfriend) G: Have you gone mad? Why are you roaring your head off like a lion? E: Rrrrr...ah! G: Hey, have you gone off your rocket or

发表于:2018-12-08 / 阅读(151) / 评论(0) 分类 赖世雄中级美国英语

It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The

发表于:2018-12-11 / 阅读(50) / 评论(0) 分类 英语解说豆知识2011年

Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出:我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体; and by taking away heat from these gases, or cooling them, we tu

发表于:2018-12-18 / 阅读(37) / 评论(0) 分类 英国学生科学读本

Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We cannot see this in a kettle, because the kettle is made of iron. 我们无法

发表于:2018-12-18 / 阅读(37) / 评论(0) 分类 英国学生科学读本

By Greg Flakus Albuquerque, New Mexico 25 July 2007 Large scale collection of solar power arrays As the world searches for ways to produce energy without burning fossil fuel, there is increased interest in solar energy. One place associated with sola

发表于:2019-01-12 / 阅读(78) / 评论(0) 分类 2007年VOA标准英语(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(170) / 评论(0) 分类 伦敦生活
学英语单词
account item
active inductor
aerial warfare
ahidjo
Arisaema bilifera
Aubord
baddish
bank exposure
bile capillary
Boltzmann brains
Broome
buildup index
byrd
Cloonbannin
cook reverse-flow thermometer
counter-balanced lift truck
cover shot
DDC (data distribution center)
delivery vent
detritus chamber
diblasio
direct mobility
document against payment at sight
Dorridge
drawback collet chuck
drive dissolved gas
duble
Dunmanbridge
elastic membrane (larynx)
electric connection
electric-light bulbs
electrochemical wheel grinding
equalizer block
ethnic stratification
false amnion cavity
family Coccinellidae
fashion grey
feeses
Fill effect
genus psettichthyss
Grimstrup
harbo(u)r entrance
Harki
HGPRTASE
Huangshan
Ilex arisanensis
in our favour
incurtained
infinitives of purpose
innascible
instrumental mannequin
inter company comparison
jessups
jivers
knee surgery
leglocks
loog
mallota matolla
man efficiency
mean square error
molecular momentum exchange
monitor interrupt
multifunction packaging machine
multiple-personality
nettling
no reinforcement needed
okoes
optically coupled system
orthopedic surgeon
peg-bar
peripheral tolerance
person-to-person service
perturbed model
petrosal part of temporal bone
portmantologism
pot rack
precious metal deposit
public official bond
query reply mode
rail rest
ramie stripes
randomer
registration system
rotating beacon
rubbing test
scheiner disc
secure location
Semple's treatment
send answer
similar polygons
stab cell
take a gander
task value attribute
teodoroes
torsional pendulum viscometer
transit clip
Tribromofluoroethane
Venezuelan equine encephalomyelitis
vigilance committees
water pump inlet hose clamp
Zend-Avestaic